1 //===-- LLParser.cpp - Parser Class ---------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the parser class for .ll files.
12 //===----------------------------------------------------------------------===//
15 #include "llvm/AutoUpgrade.h"
16 #include "llvm/CallingConv.h"
17 #include "llvm/Constants.h"
18 #include "llvm/DerivedTypes.h"
19 #include "llvm/InlineAsm.h"
20 #include "llvm/Instructions.h"
21 #include "llvm/Module.h"
22 #include "llvm/Operator.h"
23 #include "llvm/ValueSymbolTable.h"
24 #include "llvm/ADT/SmallPtrSet.h"
25 #include "llvm/ADT/StringExtras.h"
26 #include "llvm/Support/ErrorHandling.h"
27 #include "llvm/Support/raw_ostream.h"
30 /// Run: module ::= toplevelentity*
31 bool LLParser::Run() {
35 return ParseTopLevelEntities() ||
36 ValidateEndOfModule();
39 /// ValidateEndOfModule - Do final validity and sanity checks at the end of the
41 bool LLParser::ValidateEndOfModule() {
42 // Update auto-upgraded malloc calls to "malloc".
43 // FIXME: Remove in LLVM 3.0.
45 MallocF->setName("malloc");
46 // If setName() does not set the name to "malloc", then there is already a
47 // declaration of "malloc". In that case, iterate over all calls to MallocF
48 // and get them to call the declared "malloc" instead.
49 if (MallocF->getName() != "malloc") {
50 Constant *RealMallocF = M->getFunction("malloc");
51 if (RealMallocF->getType() != MallocF->getType())
52 RealMallocF = ConstantExpr::getBitCast(RealMallocF, MallocF->getType());
53 MallocF->replaceAllUsesWith(RealMallocF);
54 MallocF->eraseFromParent();
60 // If there are entries in ForwardRefBlockAddresses at this point, they are
61 // references after the function was defined. Resolve those now.
62 while (!ForwardRefBlockAddresses.empty()) {
63 // Okay, we are referencing an already-parsed function, resolve them now.
65 const ValID &Fn = ForwardRefBlockAddresses.begin()->first;
66 if (Fn.Kind == ValID::t_GlobalName)
67 TheFn = M->getFunction(Fn.StrVal);
68 else if (Fn.UIntVal < NumberedVals.size())
69 TheFn = dyn_cast<Function>(NumberedVals[Fn.UIntVal]);
72 return Error(Fn.Loc, "unknown function referenced by blockaddress");
74 // Resolve all these references.
75 if (ResolveForwardRefBlockAddresses(TheFn,
76 ForwardRefBlockAddresses.begin()->second,
80 ForwardRefBlockAddresses.erase(ForwardRefBlockAddresses.begin());
84 if (!ForwardRefTypes.empty())
85 return Error(ForwardRefTypes.begin()->second.second,
86 "use of undefined type named '" +
87 ForwardRefTypes.begin()->first + "'");
88 if (!ForwardRefTypeIDs.empty())
89 return Error(ForwardRefTypeIDs.begin()->second.second,
90 "use of undefined type '%" +
91 utostr(ForwardRefTypeIDs.begin()->first) + "'");
93 if (!ForwardRefVals.empty())
94 return Error(ForwardRefVals.begin()->second.second,
95 "use of undefined value '@" + ForwardRefVals.begin()->first +
98 if (!ForwardRefValIDs.empty())
99 return Error(ForwardRefValIDs.begin()->second.second,
100 "use of undefined value '@" +
101 utostr(ForwardRefValIDs.begin()->first) + "'");
103 if (!ForwardRefMDNodes.empty())
104 return Error(ForwardRefMDNodes.begin()->second.second,
105 "use of undefined metadata '!" +
106 utostr(ForwardRefMDNodes.begin()->first) + "'");
109 // Look for intrinsic functions and CallInst that need to be upgraded
110 for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; )
111 UpgradeCallsToIntrinsic(FI++); // must be post-increment, as we remove
113 // Check debug info intrinsics.
114 CheckDebugInfoIntrinsics(M);
118 bool LLParser::ResolveForwardRefBlockAddresses(Function *TheFn,
119 std::vector<std::pair<ValID, GlobalValue*> > &Refs,
120 PerFunctionState *PFS) {
121 // Loop over all the references, resolving them.
122 for (unsigned i = 0, e = Refs.size(); i != e; ++i) {
125 if (Refs[i].first.Kind == ValID::t_LocalName)
126 Res = PFS->GetBB(Refs[i].first.StrVal, Refs[i].first.Loc);
128 Res = PFS->GetBB(Refs[i].first.UIntVal, Refs[i].first.Loc);
129 } else if (Refs[i].first.Kind == ValID::t_LocalID) {
130 return Error(Refs[i].first.Loc,
131 "cannot take address of numeric label after the function is defined");
133 Res = dyn_cast_or_null<BasicBlock>(
134 TheFn->getValueSymbolTable().lookup(Refs[i].first.StrVal));
138 return Error(Refs[i].first.Loc,
139 "referenced value is not a basic block");
141 // Get the BlockAddress for this and update references to use it.
142 BlockAddress *BA = BlockAddress::get(TheFn, Res);
143 Refs[i].second->replaceAllUsesWith(BA);
144 Refs[i].second->eraseFromParent();
150 //===----------------------------------------------------------------------===//
151 // Top-Level Entities
152 //===----------------------------------------------------------------------===//
154 bool LLParser::ParseTopLevelEntities() {
156 switch (Lex.getKind()) {
157 default: return TokError("expected top-level entity");
158 case lltok::Eof: return false;
159 //case lltok::kw_define:
160 case lltok::kw_declare: if (ParseDeclare()) return true; break;
161 case lltok::kw_define: if (ParseDefine()) return true; break;
162 case lltok::kw_module: if (ParseModuleAsm()) return true; break;
163 case lltok::kw_target: if (ParseTargetDefinition()) return true; break;
164 case lltok::kw_deplibs: if (ParseDepLibs()) return true; break;
165 case lltok::kw_type: if (ParseUnnamedType()) return true; break;
166 case lltok::LocalVarID: if (ParseUnnamedType()) return true; break;
167 case lltok::StringConstant: // FIXME: REMOVE IN LLVM 3.0
168 case lltok::LocalVar: if (ParseNamedType()) return true; break;
169 case lltok::GlobalID: if (ParseUnnamedGlobal()) return true; break;
170 case lltok::GlobalVar: if (ParseNamedGlobal()) return true; break;
171 case lltok::exclaim: if (ParseStandaloneMetadata()) return true; break;
172 case lltok::MetadataVar: if (ParseNamedMetadata()) return true; break;
174 // The Global variable production with no name can have many different
175 // optional leading prefixes, the production is:
176 // GlobalVar ::= OptionalLinkage OptionalVisibility OptionalThreadLocal
177 // OptionalAddrSpace ('constant'|'global') ...
178 case lltok::kw_private : // OptionalLinkage
179 case lltok::kw_linker_private: // OptionalLinkage
180 case lltok::kw_internal: // OptionalLinkage
181 case lltok::kw_weak: // OptionalLinkage
182 case lltok::kw_weak_odr: // OptionalLinkage
183 case lltok::kw_linkonce: // OptionalLinkage
184 case lltok::kw_linkonce_odr: // OptionalLinkage
185 case lltok::kw_appending: // OptionalLinkage
186 case lltok::kw_dllexport: // OptionalLinkage
187 case lltok::kw_common: // OptionalLinkage
188 case lltok::kw_dllimport: // OptionalLinkage
189 case lltok::kw_extern_weak: // OptionalLinkage
190 case lltok::kw_external: { // OptionalLinkage
191 unsigned Linkage, Visibility;
192 if (ParseOptionalLinkage(Linkage) ||
193 ParseOptionalVisibility(Visibility) ||
194 ParseGlobal("", SMLoc(), Linkage, true, Visibility))
198 case lltok::kw_default: // OptionalVisibility
199 case lltok::kw_hidden: // OptionalVisibility
200 case lltok::kw_protected: { // OptionalVisibility
202 if (ParseOptionalVisibility(Visibility) ||
203 ParseGlobal("", SMLoc(), 0, false, Visibility))
208 case lltok::kw_thread_local: // OptionalThreadLocal
209 case lltok::kw_addrspace: // OptionalAddrSpace
210 case lltok::kw_constant: // GlobalType
211 case lltok::kw_global: // GlobalType
212 if (ParseGlobal("", SMLoc(), 0, false, 0)) return true;
220 /// ::= 'module' 'asm' STRINGCONSTANT
221 bool LLParser::ParseModuleAsm() {
222 assert(Lex.getKind() == lltok::kw_module);
226 if (ParseToken(lltok::kw_asm, "expected 'module asm'") ||
227 ParseStringConstant(AsmStr)) return true;
229 const std::string &AsmSoFar = M->getModuleInlineAsm();
230 if (AsmSoFar.empty())
231 M->setModuleInlineAsm(AsmStr);
233 M->setModuleInlineAsm(AsmSoFar+"\n"+AsmStr);
238 /// ::= 'target' 'triple' '=' STRINGCONSTANT
239 /// ::= 'target' 'datalayout' '=' STRINGCONSTANT
240 bool LLParser::ParseTargetDefinition() {
241 assert(Lex.getKind() == lltok::kw_target);
244 default: return TokError("unknown target property");
245 case lltok::kw_triple:
247 if (ParseToken(lltok::equal, "expected '=' after target triple") ||
248 ParseStringConstant(Str))
250 M->setTargetTriple(Str);
252 case lltok::kw_datalayout:
254 if (ParseToken(lltok::equal, "expected '=' after target datalayout") ||
255 ParseStringConstant(Str))
257 M->setDataLayout(Str);
263 /// ::= 'deplibs' '=' '[' ']'
264 /// ::= 'deplibs' '=' '[' STRINGCONSTANT (',' STRINGCONSTANT)* ']'
265 bool LLParser::ParseDepLibs() {
266 assert(Lex.getKind() == lltok::kw_deplibs);
268 if (ParseToken(lltok::equal, "expected '=' after deplibs") ||
269 ParseToken(lltok::lsquare, "expected '=' after deplibs"))
272 if (EatIfPresent(lltok::rsquare))
276 if (ParseStringConstant(Str)) return true;
279 while (EatIfPresent(lltok::comma)) {
280 if (ParseStringConstant(Str)) return true;
284 return ParseToken(lltok::rsquare, "expected ']' at end of list");
287 /// ParseUnnamedType:
289 /// ::= LocalVarID '=' 'type' type
290 bool LLParser::ParseUnnamedType() {
291 unsigned TypeID = NumberedTypes.size();
293 // Handle the LocalVarID form.
294 if (Lex.getKind() == lltok::LocalVarID) {
295 if (Lex.getUIntVal() != TypeID)
296 return Error(Lex.getLoc(), "type expected to be numbered '%" +
297 utostr(TypeID) + "'");
298 Lex.Lex(); // eat LocalVarID;
300 if (ParseToken(lltok::equal, "expected '=' after name"))
304 assert(Lex.getKind() == lltok::kw_type);
305 LocTy TypeLoc = Lex.getLoc();
306 Lex.Lex(); // eat kw_type
308 PATypeHolder Ty(Type::getVoidTy(Context));
309 if (ParseType(Ty)) return true;
311 // See if this type was previously referenced.
312 std::map<unsigned, std::pair<PATypeHolder, LocTy> >::iterator
313 FI = ForwardRefTypeIDs.find(TypeID);
314 if (FI != ForwardRefTypeIDs.end()) {
315 if (FI->second.first.get() == Ty)
316 return Error(TypeLoc, "self referential type is invalid");
318 cast<DerivedType>(FI->second.first.get())->refineAbstractTypeTo(Ty);
319 Ty = FI->second.first.get();
320 ForwardRefTypeIDs.erase(FI);
323 NumberedTypes.push_back(Ty);
329 /// ::= LocalVar '=' 'type' type
330 bool LLParser::ParseNamedType() {
331 std::string Name = Lex.getStrVal();
332 LocTy NameLoc = Lex.getLoc();
333 Lex.Lex(); // eat LocalVar.
335 PATypeHolder Ty(Type::getVoidTy(Context));
337 if (ParseToken(lltok::equal, "expected '=' after name") ||
338 ParseToken(lltok::kw_type, "expected 'type' after name") ||
342 // Set the type name, checking for conflicts as we do so.
343 bool AlreadyExists = M->addTypeName(Name, Ty);
344 if (!AlreadyExists) return false;
346 // See if this type is a forward reference. We need to eagerly resolve
347 // types to allow recursive type redefinitions below.
348 std::map<std::string, std::pair<PATypeHolder, LocTy> >::iterator
349 FI = ForwardRefTypes.find(Name);
350 if (FI != ForwardRefTypes.end()) {
351 if (FI->second.first.get() == Ty)
352 return Error(NameLoc, "self referential type is invalid");
354 cast<DerivedType>(FI->second.first.get())->refineAbstractTypeTo(Ty);
355 Ty = FI->second.first.get();
356 ForwardRefTypes.erase(FI);
359 // Inserting a name that is already defined, get the existing name.
360 const Type *Existing = M->getTypeByName(Name);
361 assert(Existing && "Conflict but no matching type?!");
363 // Otherwise, this is an attempt to redefine a type. That's okay if
364 // the redefinition is identical to the original.
365 // FIXME: REMOVE REDEFINITIONS IN LLVM 3.0
366 if (Existing == Ty) return false;
368 // Any other kind of (non-equivalent) redefinition is an error.
369 return Error(NameLoc, "redefinition of type named '" + Name + "' of type '" +
370 Ty->getDescription() + "'");
375 /// ::= 'declare' FunctionHeader
376 bool LLParser::ParseDeclare() {
377 assert(Lex.getKind() == lltok::kw_declare);
381 return ParseFunctionHeader(F, false);
385 /// ::= 'define' FunctionHeader '{' ...
386 bool LLParser::ParseDefine() {
387 assert(Lex.getKind() == lltok::kw_define);
391 return ParseFunctionHeader(F, true) ||
392 ParseFunctionBody(*F);
398 bool LLParser::ParseGlobalType(bool &IsConstant) {
399 if (Lex.getKind() == lltok::kw_constant)
401 else if (Lex.getKind() == lltok::kw_global)
405 return TokError("expected 'global' or 'constant'");
411 /// ParseUnnamedGlobal:
412 /// OptionalVisibility ALIAS ...
413 /// OptionalLinkage OptionalVisibility ... -> global variable
414 /// GlobalID '=' OptionalVisibility ALIAS ...
415 /// GlobalID '=' OptionalLinkage OptionalVisibility ... -> global variable
416 bool LLParser::ParseUnnamedGlobal() {
417 unsigned VarID = NumberedVals.size();
419 LocTy NameLoc = Lex.getLoc();
421 // Handle the GlobalID form.
422 if (Lex.getKind() == lltok::GlobalID) {
423 if (Lex.getUIntVal() != VarID)
424 return Error(Lex.getLoc(), "variable expected to be numbered '%" +
425 utostr(VarID) + "'");
426 Lex.Lex(); // eat GlobalID;
428 if (ParseToken(lltok::equal, "expected '=' after name"))
433 unsigned Linkage, Visibility;
434 if (ParseOptionalLinkage(Linkage, HasLinkage) ||
435 ParseOptionalVisibility(Visibility))
438 if (HasLinkage || Lex.getKind() != lltok::kw_alias)
439 return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility);
440 return ParseAlias(Name, NameLoc, Visibility);
443 /// ParseNamedGlobal:
444 /// GlobalVar '=' OptionalVisibility ALIAS ...
445 /// GlobalVar '=' OptionalLinkage OptionalVisibility ... -> global variable
446 bool LLParser::ParseNamedGlobal() {
447 assert(Lex.getKind() == lltok::GlobalVar);
448 LocTy NameLoc = Lex.getLoc();
449 std::string Name = Lex.getStrVal();
453 unsigned Linkage, Visibility;
454 if (ParseToken(lltok::equal, "expected '=' in global variable") ||
455 ParseOptionalLinkage(Linkage, HasLinkage) ||
456 ParseOptionalVisibility(Visibility))
459 if (HasLinkage || Lex.getKind() != lltok::kw_alias)
460 return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility);
461 return ParseAlias(Name, NameLoc, Visibility);
465 // ::= '!' STRINGCONSTANT
466 bool LLParser::ParseMDString(MDString *&Result) {
468 if (ParseStringConstant(Str)) return true;
469 Result = MDString::get(Context, Str);
474 // ::= '!' MDNodeNumber
475 bool LLParser::ParseMDNodeID(MDNode *&Result) {
476 // !{ ..., !42, ... }
478 if (ParseUInt32(MID)) return true;
480 // Check existing MDNode.
481 if (MID < NumberedMetadata.size() && NumberedMetadata[MID] != 0) {
482 Result = NumberedMetadata[MID];
486 // Create MDNode forward reference.
488 // FIXME: This is not unique enough!
489 std::string FwdRefName = "llvm.mdnode.fwdref." + utostr(MID);
490 Value *V = MDString::get(Context, FwdRefName);
491 MDNode *FwdNode = MDNode::get(Context, &V, 1);
492 ForwardRefMDNodes[MID] = std::make_pair(FwdNode, Lex.getLoc());
494 if (NumberedMetadata.size() <= MID)
495 NumberedMetadata.resize(MID+1);
496 NumberedMetadata[MID] = FwdNode;
501 /// ParseNamedMetadata:
502 /// !foo = !{ !1, !2 }
503 bool LLParser::ParseNamedMetadata() {
504 assert(Lex.getKind() == lltok::MetadataVar);
505 std::string Name = Lex.getStrVal();
508 if (ParseToken(lltok::equal, "expected '=' here") ||
509 ParseToken(lltok::exclaim, "Expected '!' here") ||
510 ParseToken(lltok::lbrace, "Expected '{' here"))
513 SmallVector<MDNode *, 8> Elts;
515 // Null is a special case since it is typeless.
516 if (EatIfPresent(lltok::kw_null)) {
521 if (ParseToken(lltok::exclaim, "Expected '!' here"))
525 if (ParseMDNodeID(N)) return true;
527 } while (EatIfPresent(lltok::comma));
529 if (ParseToken(lltok::rbrace, "expected end of metadata node"))
532 NamedMDNode::Create(Context, Name, Elts.data(), Elts.size(), M);
536 /// ParseStandaloneMetadata:
538 bool LLParser::ParseStandaloneMetadata() {
539 assert(Lex.getKind() == lltok::exclaim);
541 unsigned MetadataID = 0;
544 PATypeHolder Ty(Type::getVoidTy(Context));
545 SmallVector<Value *, 16> Elts;
546 if (ParseUInt32(MetadataID) ||
547 ParseToken(lltok::equal, "expected '=' here") ||
548 ParseType(Ty, TyLoc) ||
549 ParseToken(lltok::exclaim, "Expected '!' here") ||
550 ParseToken(lltok::lbrace, "Expected '{' here") ||
551 ParseMDNodeVector(Elts, NULL) ||
552 ParseToken(lltok::rbrace, "expected end of metadata node"))
555 MDNode *Init = MDNode::get(Context, Elts.data(), Elts.size());
557 // See if this was forward referenced, if so, handle it.
558 std::map<unsigned, std::pair<TrackingVH<MDNode>, LocTy> >::iterator
559 FI = ForwardRefMDNodes.find(MetadataID);
560 if (FI != ForwardRefMDNodes.end()) {
561 FI->second.first->replaceAllUsesWith(Init);
562 ForwardRefMDNodes.erase(FI);
564 assert(NumberedMetadata[MetadataID] == Init && "Tracking VH didn't work");
566 if (MetadataID >= NumberedMetadata.size())
567 NumberedMetadata.resize(MetadataID+1);
569 if (NumberedMetadata[MetadataID] != 0)
570 return TokError("Metadata id is already used");
571 NumberedMetadata[MetadataID] = Init;
578 /// ::= GlobalVar '=' OptionalVisibility 'alias' OptionalLinkage Aliasee
581 /// ::= 'bitcast' '(' TypeAndValue 'to' Type ')'
582 /// ::= 'getelementptr' 'inbounds'? '(' ... ')'
584 /// Everything through visibility has already been parsed.
586 bool LLParser::ParseAlias(const std::string &Name, LocTy NameLoc,
587 unsigned Visibility) {
588 assert(Lex.getKind() == lltok::kw_alias);
591 LocTy LinkageLoc = Lex.getLoc();
592 if (ParseOptionalLinkage(Linkage))
595 if (Linkage != GlobalValue::ExternalLinkage &&
596 Linkage != GlobalValue::WeakAnyLinkage &&
597 Linkage != GlobalValue::WeakODRLinkage &&
598 Linkage != GlobalValue::InternalLinkage &&
599 Linkage != GlobalValue::PrivateLinkage &&
600 Linkage != GlobalValue::LinkerPrivateLinkage)
601 return Error(LinkageLoc, "invalid linkage type for alias");
604 LocTy AliaseeLoc = Lex.getLoc();
605 if (Lex.getKind() != lltok::kw_bitcast &&
606 Lex.getKind() != lltok::kw_getelementptr) {
607 if (ParseGlobalTypeAndValue(Aliasee)) return true;
609 // The bitcast dest type is not present, it is implied by the dest type.
611 if (ParseValID(ID)) return true;
612 if (ID.Kind != ValID::t_Constant)
613 return Error(AliaseeLoc, "invalid aliasee");
614 Aliasee = ID.ConstantVal;
617 if (!Aliasee->getType()->isPointerTy())
618 return Error(AliaseeLoc, "alias must have pointer type");
620 // Okay, create the alias but do not insert it into the module yet.
621 GlobalAlias* GA = new GlobalAlias(Aliasee->getType(),
622 (GlobalValue::LinkageTypes)Linkage, Name,
624 GA->setVisibility((GlobalValue::VisibilityTypes)Visibility);
626 // See if this value already exists in the symbol table. If so, it is either
627 // a redefinition or a definition of a forward reference.
628 if (GlobalValue *Val = M->getNamedValue(Name)) {
629 // See if this was a redefinition. If so, there is no entry in
631 std::map<std::string, std::pair<GlobalValue*, LocTy> >::iterator
632 I = ForwardRefVals.find(Name);
633 if (I == ForwardRefVals.end())
634 return Error(NameLoc, "redefinition of global named '@" + Name + "'");
636 // Otherwise, this was a definition of forward ref. Verify that types
638 if (Val->getType() != GA->getType())
639 return Error(NameLoc,
640 "forward reference and definition of alias have different types");
642 // If they agree, just RAUW the old value with the alias and remove the
644 Val->replaceAllUsesWith(GA);
645 Val->eraseFromParent();
646 ForwardRefVals.erase(I);
649 // Insert into the module, we know its name won't collide now.
650 M->getAliasList().push_back(GA);
651 assert(GA->getNameStr() == Name && "Should not be a name conflict!");
657 /// ::= GlobalVar '=' OptionalLinkage OptionalVisibility OptionalThreadLocal
658 /// OptionalAddrSpace GlobalType Type Const
659 /// ::= OptionalLinkage OptionalVisibility OptionalThreadLocal
660 /// OptionalAddrSpace GlobalType Type Const
662 /// Everything through visibility has been parsed already.
664 bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc,
665 unsigned Linkage, bool HasLinkage,
666 unsigned Visibility) {
668 bool ThreadLocal, IsConstant;
671 PATypeHolder Ty(Type::getVoidTy(Context));
672 if (ParseOptionalToken(lltok::kw_thread_local, ThreadLocal) ||
673 ParseOptionalAddrSpace(AddrSpace) ||
674 ParseGlobalType(IsConstant) ||
675 ParseType(Ty, TyLoc))
678 // If the linkage is specified and is external, then no initializer is
681 if (!HasLinkage || (Linkage != GlobalValue::DLLImportLinkage &&
682 Linkage != GlobalValue::ExternalWeakLinkage &&
683 Linkage != GlobalValue::ExternalLinkage)) {
684 if (ParseGlobalValue(Ty, Init))
688 if (Ty->isFunctionTy() || Ty->isLabelTy())
689 return Error(TyLoc, "invalid type for global variable");
691 GlobalVariable *GV = 0;
693 // See if the global was forward referenced, if so, use the global.
695 if (GlobalValue *GVal = M->getNamedValue(Name)) {
696 if (!ForwardRefVals.erase(Name) || !isa<GlobalValue>(GVal))
697 return Error(NameLoc, "redefinition of global '@" + Name + "'");
698 GV = cast<GlobalVariable>(GVal);
701 std::map<unsigned, std::pair<GlobalValue*, LocTy> >::iterator
702 I = ForwardRefValIDs.find(NumberedVals.size());
703 if (I != ForwardRefValIDs.end()) {
704 GV = cast<GlobalVariable>(I->second.first);
705 ForwardRefValIDs.erase(I);
710 GV = new GlobalVariable(*M, Ty, false, GlobalValue::ExternalLinkage, 0,
711 Name, 0, false, AddrSpace);
713 if (GV->getType()->getElementType() != Ty)
715 "forward reference and definition of global have different types");
717 // Move the forward-reference to the correct spot in the module.
718 M->getGlobalList().splice(M->global_end(), M->getGlobalList(), GV);
722 NumberedVals.push_back(GV);
724 // Set the parsed properties on the global.
726 GV->setInitializer(Init);
727 GV->setConstant(IsConstant);
728 GV->setLinkage((GlobalValue::LinkageTypes)Linkage);
729 GV->setVisibility((GlobalValue::VisibilityTypes)Visibility);
730 GV->setThreadLocal(ThreadLocal);
732 // Parse attributes on the global.
733 while (Lex.getKind() == lltok::comma) {
736 if (Lex.getKind() == lltok::kw_section) {
738 GV->setSection(Lex.getStrVal());
739 if (ParseToken(lltok::StringConstant, "expected global section string"))
741 } else if (Lex.getKind() == lltok::kw_align) {
743 if (ParseOptionalAlignment(Alignment)) return true;
744 GV->setAlignment(Alignment);
746 TokError("unknown global variable property!");
754 //===----------------------------------------------------------------------===//
755 // GlobalValue Reference/Resolution Routines.
756 //===----------------------------------------------------------------------===//
758 /// GetGlobalVal - Get a value with the specified name or ID, creating a
759 /// forward reference record if needed. This can return null if the value
760 /// exists but does not have the right type.
761 GlobalValue *LLParser::GetGlobalVal(const std::string &Name, const Type *Ty,
763 const PointerType *PTy = dyn_cast<PointerType>(Ty);
765 Error(Loc, "global variable reference must have pointer type");
769 // Look this name up in the normal function symbol table.
771 cast_or_null<GlobalValue>(M->getValueSymbolTable().lookup(Name));
773 // If this is a forward reference for the value, see if we already created a
774 // forward ref record.
776 std::map<std::string, std::pair<GlobalValue*, LocTy> >::iterator
777 I = ForwardRefVals.find(Name);
778 if (I != ForwardRefVals.end())
779 Val = I->second.first;
782 // If we have the value in the symbol table or fwd-ref table, return it.
784 if (Val->getType() == Ty) return Val;
785 Error(Loc, "'@" + Name + "' defined with type '" +
786 Val->getType()->getDescription() + "'");
790 // Otherwise, create a new forward reference for this value and remember it.
792 if (const FunctionType *FT = dyn_cast<FunctionType>(PTy->getElementType())) {
793 // Function types can return opaque but functions can't.
794 if (FT->getReturnType()->isOpaqueTy()) {
795 Error(Loc, "function may not return opaque type");
799 FwdVal = Function::Create(FT, GlobalValue::ExternalWeakLinkage, Name, M);
801 FwdVal = new GlobalVariable(*M, PTy->getElementType(), false,
802 GlobalValue::ExternalWeakLinkage, 0, Name);
805 ForwardRefVals[Name] = std::make_pair(FwdVal, Loc);
809 GlobalValue *LLParser::GetGlobalVal(unsigned ID, const Type *Ty, LocTy Loc) {
810 const PointerType *PTy = dyn_cast<PointerType>(Ty);
812 Error(Loc, "global variable reference must have pointer type");
816 GlobalValue *Val = ID < NumberedVals.size() ? NumberedVals[ID] : 0;
818 // If this is a forward reference for the value, see if we already created a
819 // forward ref record.
821 std::map<unsigned, std::pair<GlobalValue*, LocTy> >::iterator
822 I = ForwardRefValIDs.find(ID);
823 if (I != ForwardRefValIDs.end())
824 Val = I->second.first;
827 // If we have the value in the symbol table or fwd-ref table, return it.
829 if (Val->getType() == Ty) return Val;
830 Error(Loc, "'@" + utostr(ID) + "' defined with type '" +
831 Val->getType()->getDescription() + "'");
835 // Otherwise, create a new forward reference for this value and remember it.
837 if (const FunctionType *FT = dyn_cast<FunctionType>(PTy->getElementType())) {
838 // Function types can return opaque but functions can't.
839 if (FT->getReturnType()->isOpaqueTy()) {
840 Error(Loc, "function may not return opaque type");
843 FwdVal = Function::Create(FT, GlobalValue::ExternalWeakLinkage, "", M);
845 FwdVal = new GlobalVariable(*M, PTy->getElementType(), false,
846 GlobalValue::ExternalWeakLinkage, 0, "");
849 ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc);
854 //===----------------------------------------------------------------------===//
856 //===----------------------------------------------------------------------===//
858 /// ParseToken - If the current token has the specified kind, eat it and return
859 /// success. Otherwise, emit the specified error and return failure.
860 bool LLParser::ParseToken(lltok::Kind T, const char *ErrMsg) {
861 if (Lex.getKind() != T)
862 return TokError(ErrMsg);
867 /// ParseStringConstant
868 /// ::= StringConstant
869 bool LLParser::ParseStringConstant(std::string &Result) {
870 if (Lex.getKind() != lltok::StringConstant)
871 return TokError("expected string constant");
872 Result = Lex.getStrVal();
879 bool LLParser::ParseUInt32(unsigned &Val) {
880 if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned())
881 return TokError("expected integer");
882 uint64_t Val64 = Lex.getAPSIntVal().getLimitedValue(0xFFFFFFFFULL+1);
883 if (Val64 != unsigned(Val64))
884 return TokError("expected 32-bit integer (too large)");
891 /// ParseOptionalAddrSpace
893 /// := 'addrspace' '(' uint32 ')'
894 bool LLParser::ParseOptionalAddrSpace(unsigned &AddrSpace) {
896 if (!EatIfPresent(lltok::kw_addrspace))
898 return ParseToken(lltok::lparen, "expected '(' in address space") ||
899 ParseUInt32(AddrSpace) ||
900 ParseToken(lltok::rparen, "expected ')' in address space");
903 /// ParseOptionalAttrs - Parse a potentially empty attribute list. AttrKind
904 /// indicates what kind of attribute list this is: 0: function arg, 1: result,
905 /// 2: function attr.
906 /// 3: function arg after value: FIXME: REMOVE IN LLVM 3.0
907 bool LLParser::ParseOptionalAttrs(unsigned &Attrs, unsigned AttrKind) {
908 Attrs = Attribute::None;
909 LocTy AttrLoc = Lex.getLoc();
912 switch (Lex.getKind()) {
915 // Treat these as signext/zeroext if they occur in the argument list after
916 // the value, as in "call i8 @foo(i8 10 sext)". If they occur before the
917 // value, as in "call i8 @foo(i8 sext (" then it is part of a constant
919 // FIXME: REMOVE THIS IN LLVM 3.0
921 if (Lex.getKind() == lltok::kw_sext)
922 Attrs |= Attribute::SExt;
924 Attrs |= Attribute::ZExt;
928 default: // End of attributes.
929 if (AttrKind != 2 && (Attrs & Attribute::FunctionOnly))
930 return Error(AttrLoc, "invalid use of function-only attribute");
932 if (AttrKind != 0 && AttrKind != 3 && (Attrs & Attribute::ParameterOnly))
933 return Error(AttrLoc, "invalid use of parameter-only attribute");
936 case lltok::kw_zeroext: Attrs |= Attribute::ZExt; break;
937 case lltok::kw_signext: Attrs |= Attribute::SExt; break;
938 case lltok::kw_inreg: Attrs |= Attribute::InReg; break;
939 case lltok::kw_sret: Attrs |= Attribute::StructRet; break;
940 case lltok::kw_noalias: Attrs |= Attribute::NoAlias; break;
941 case lltok::kw_nocapture: Attrs |= Attribute::NoCapture; break;
942 case lltok::kw_byval: Attrs |= Attribute::ByVal; break;
943 case lltok::kw_nest: Attrs |= Attribute::Nest; break;
945 case lltok::kw_noreturn: Attrs |= Attribute::NoReturn; break;
946 case lltok::kw_nounwind: Attrs |= Attribute::NoUnwind; break;
947 case lltok::kw_noinline: Attrs |= Attribute::NoInline; break;
948 case lltok::kw_readnone: Attrs |= Attribute::ReadNone; break;
949 case lltok::kw_readonly: Attrs |= Attribute::ReadOnly; break;
950 case lltok::kw_inlinehint: Attrs |= Attribute::InlineHint; break;
951 case lltok::kw_alwaysinline: Attrs |= Attribute::AlwaysInline; break;
952 case lltok::kw_optsize: Attrs |= Attribute::OptimizeForSize; break;
953 case lltok::kw_ssp: Attrs |= Attribute::StackProtect; break;
954 case lltok::kw_sspreq: Attrs |= Attribute::StackProtectReq; break;
955 case lltok::kw_noredzone: Attrs |= Attribute::NoRedZone; break;
956 case lltok::kw_noimplicitfloat: Attrs |= Attribute::NoImplicitFloat; break;
957 case lltok::kw_naked: Attrs |= Attribute::Naked; break;
959 case lltok::kw_alignstack: {
961 if (ParseOptionalStackAlignment(Alignment))
963 Attrs |= Attribute::constructStackAlignmentFromInt(Alignment);
967 case lltok::kw_align: {
969 if (ParseOptionalAlignment(Alignment))
971 Attrs |= Attribute::constructAlignmentFromInt(Alignment);
980 /// ParseOptionalLinkage
983 /// ::= 'linker_private'
988 /// ::= 'linkonce_odr'
993 /// ::= 'extern_weak'
995 bool LLParser::ParseOptionalLinkage(unsigned &Res, bool &HasLinkage) {
997 switch (Lex.getKind()) {
998 default: Res=GlobalValue::ExternalLinkage; return false;
999 case lltok::kw_private: Res = GlobalValue::PrivateLinkage; break;
1000 case lltok::kw_linker_private: Res = GlobalValue::LinkerPrivateLinkage; break;
1001 case lltok::kw_internal: Res = GlobalValue::InternalLinkage; break;
1002 case lltok::kw_weak: Res = GlobalValue::WeakAnyLinkage; break;
1003 case lltok::kw_weak_odr: Res = GlobalValue::WeakODRLinkage; break;
1004 case lltok::kw_linkonce: Res = GlobalValue::LinkOnceAnyLinkage; break;
1005 case lltok::kw_linkonce_odr: Res = GlobalValue::LinkOnceODRLinkage; break;
1006 case lltok::kw_available_externally:
1007 Res = GlobalValue::AvailableExternallyLinkage;
1009 case lltok::kw_appending: Res = GlobalValue::AppendingLinkage; break;
1010 case lltok::kw_dllexport: Res = GlobalValue::DLLExportLinkage; break;
1011 case lltok::kw_common: Res = GlobalValue::CommonLinkage; break;
1012 case lltok::kw_dllimport: Res = GlobalValue::DLLImportLinkage; break;
1013 case lltok::kw_extern_weak: Res = GlobalValue::ExternalWeakLinkage; break;
1014 case lltok::kw_external: Res = GlobalValue::ExternalLinkage; break;
1021 /// ParseOptionalVisibility
1027 bool LLParser::ParseOptionalVisibility(unsigned &Res) {
1028 switch (Lex.getKind()) {
1029 default: Res = GlobalValue::DefaultVisibility; return false;
1030 case lltok::kw_default: Res = GlobalValue::DefaultVisibility; break;
1031 case lltok::kw_hidden: Res = GlobalValue::HiddenVisibility; break;
1032 case lltok::kw_protected: Res = GlobalValue::ProtectedVisibility; break;
1038 /// ParseOptionalCallingConv
1043 /// ::= 'x86_stdcallcc'
1044 /// ::= 'x86_fastcallcc'
1045 /// ::= 'arm_apcscc'
1046 /// ::= 'arm_aapcscc'
1047 /// ::= 'arm_aapcs_vfpcc'
1048 /// ::= 'msp430_intrcc'
1051 bool LLParser::ParseOptionalCallingConv(CallingConv::ID &CC) {
1052 switch (Lex.getKind()) {
1053 default: CC = CallingConv::C; return false;
1054 case lltok::kw_ccc: CC = CallingConv::C; break;
1055 case lltok::kw_fastcc: CC = CallingConv::Fast; break;
1056 case lltok::kw_coldcc: CC = CallingConv::Cold; break;
1057 case lltok::kw_x86_stdcallcc: CC = CallingConv::X86_StdCall; break;
1058 case lltok::kw_x86_fastcallcc: CC = CallingConv::X86_FastCall; break;
1059 case lltok::kw_arm_apcscc: CC = CallingConv::ARM_APCS; break;
1060 case lltok::kw_arm_aapcscc: CC = CallingConv::ARM_AAPCS; break;
1061 case lltok::kw_arm_aapcs_vfpcc:CC = CallingConv::ARM_AAPCS_VFP; break;
1062 case lltok::kw_msp430_intrcc: CC = CallingConv::MSP430_INTR; break;
1063 case lltok::kw_cc: {
1064 unsigned ArbitraryCC;
1066 if (ParseUInt32(ArbitraryCC)) {
1069 CC = static_cast<CallingConv::ID>(ArbitraryCC);
1079 /// ParseInstructionMetadata
1080 /// ::= !dbg !42 (',' !dbg !57)*
1082 ParseInstructionMetadata(SmallVectorImpl<std::pair<unsigned,
1083 MDNode *> > &Result){
1085 if (Lex.getKind() != lltok::MetadataVar)
1086 return TokError("expected metadata after comma");
1088 std::string Name = Lex.getStrVal();
1092 if (ParseToken(lltok::exclaim, "expected '!' here") ||
1093 ParseMDNodeID(Node))
1096 unsigned MDK = M->getMDKindID(Name.c_str());
1097 Result.push_back(std::make_pair(MDK, Node));
1099 // If this is the end of the list, we're done.
1100 } while (EatIfPresent(lltok::comma));
1104 /// ParseOptionalAlignment
1107 bool LLParser::ParseOptionalAlignment(unsigned &Alignment) {
1109 if (!EatIfPresent(lltok::kw_align))
1111 LocTy AlignLoc = Lex.getLoc();
1112 if (ParseUInt32(Alignment)) return true;
1113 if (!isPowerOf2_32(Alignment))
1114 return Error(AlignLoc, "alignment is not a power of two");
1118 /// ParseOptionalCommaAlign
1122 /// This returns with AteExtraComma set to true if it ate an excess comma at the
1124 bool LLParser::ParseOptionalCommaAlign(unsigned &Alignment,
1125 bool &AteExtraComma) {
1126 AteExtraComma = false;
1127 while (EatIfPresent(lltok::comma)) {
1128 // Metadata at the end is an early exit.
1129 if (Lex.getKind() == lltok::MetadataVar) {
1130 AteExtraComma = true;
1134 if (Lex.getKind() == lltok::kw_align) {
1135 if (ParseOptionalAlignment(Alignment)) return true;
1143 /// ParseOptionalStackAlignment
1145 /// ::= 'alignstack' '(' 4 ')'
1146 bool LLParser::ParseOptionalStackAlignment(unsigned &Alignment) {
1148 if (!EatIfPresent(lltok::kw_alignstack))
1150 LocTy ParenLoc = Lex.getLoc();
1151 if (!EatIfPresent(lltok::lparen))
1152 return Error(ParenLoc, "expected '('");
1153 LocTy AlignLoc = Lex.getLoc();
1154 if (ParseUInt32(Alignment)) return true;
1155 ParenLoc = Lex.getLoc();
1156 if (!EatIfPresent(lltok::rparen))
1157 return Error(ParenLoc, "expected ')'");
1158 if (!isPowerOf2_32(Alignment))
1159 return Error(AlignLoc, "stack alignment is not a power of two");
1163 /// ParseIndexList - This parses the index list for an insert/extractvalue
1164 /// instruction. This sets AteExtraComma in the case where we eat an extra
1165 /// comma at the end of the line and find that it is followed by metadata.
1166 /// Clients that don't allow metadata can call the version of this function that
1167 /// only takes one argument.
1170 /// ::= (',' uint32)+
1172 bool LLParser::ParseIndexList(SmallVectorImpl<unsigned> &Indices,
1173 bool &AteExtraComma) {
1174 AteExtraComma = false;
1176 if (Lex.getKind() != lltok::comma)
1177 return TokError("expected ',' as start of index list");
1179 while (EatIfPresent(lltok::comma)) {
1180 if (Lex.getKind() == lltok::MetadataVar) {
1181 AteExtraComma = true;
1185 if (ParseUInt32(Idx)) return true;
1186 Indices.push_back(Idx);
1192 //===----------------------------------------------------------------------===//
1194 //===----------------------------------------------------------------------===//
1196 /// ParseType - Parse and resolve a full type.
1197 bool LLParser::ParseType(PATypeHolder &Result, bool AllowVoid) {
1198 LocTy TypeLoc = Lex.getLoc();
1199 if (ParseTypeRec(Result)) return true;
1201 // Verify no unresolved uprefs.
1202 if (!UpRefs.empty())
1203 return Error(UpRefs.back().Loc, "invalid unresolved type up reference");
1205 if (!AllowVoid && Result.get()->isVoidTy())
1206 return Error(TypeLoc, "void type only allowed for function results");
1211 /// HandleUpRefs - Every time we finish a new layer of types, this function is
1212 /// called. It loops through the UpRefs vector, which is a list of the
1213 /// currently active types. For each type, if the up-reference is contained in
1214 /// the newly completed type, we decrement the level count. When the level
1215 /// count reaches zero, the up-referenced type is the type that is passed in:
1216 /// thus we can complete the cycle.
1218 PATypeHolder LLParser::HandleUpRefs(const Type *ty) {
1219 // If Ty isn't abstract, or if there are no up-references in it, then there is
1220 // nothing to resolve here.
1221 if (!ty->isAbstract() || UpRefs.empty()) return ty;
1223 PATypeHolder Ty(ty);
1225 dbgs() << "Type '" << Ty->getDescription()
1226 << "' newly formed. Resolving upreferences.\n"
1227 << UpRefs.size() << " upreferences active!\n";
1230 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
1231 // to zero), we resolve them all together before we resolve them to Ty. At
1232 // the end of the loop, if there is anything to resolve to Ty, it will be in
1234 OpaqueType *TypeToResolve = 0;
1236 for (unsigned i = 0; i != UpRefs.size(); ++i) {
1237 // Determine if 'Ty' directly contains this up-references 'LastContainedTy'.
1239 std::find(Ty->subtype_begin(), Ty->subtype_end(),
1240 UpRefs[i].LastContainedTy) != Ty->subtype_end();
1243 dbgs() << " UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
1244 << UpRefs[i].LastContainedTy->getDescription() << ") = "
1245 << (ContainsType ? "true" : "false")
1246 << " level=" << UpRefs[i].NestingLevel << "\n";
1251 // Decrement level of upreference
1252 unsigned Level = --UpRefs[i].NestingLevel;
1253 UpRefs[i].LastContainedTy = Ty;
1255 // If the Up-reference has a non-zero level, it shouldn't be resolved yet.
1260 dbgs() << " * Resolving upreference for " << UpRefs[i].UpRefTy << "\n";
1263 TypeToResolve = UpRefs[i].UpRefTy;
1265 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
1266 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list.
1267 --i; // Do not skip the next element.
1271 TypeToResolve->refineAbstractTypeTo(Ty);
1277 /// ParseTypeRec - The recursive function used to process the internal
1278 /// implementation details of types.
1279 bool LLParser::ParseTypeRec(PATypeHolder &Result) {
1280 switch (Lex.getKind()) {
1282 return TokError("expected type");
1284 // TypeRec ::= 'float' | 'void' (etc)
1285 Result = Lex.getTyVal();
1288 case lltok::kw_opaque:
1289 // TypeRec ::= 'opaque'
1290 Result = OpaqueType::get(Context);
1294 // TypeRec ::= '{' ... '}'
1295 if (ParseStructType(Result, false))
1298 case lltok::kw_union:
1299 // TypeRec ::= 'union' '{' ... '}'
1300 if (ParseUnionType(Result))
1303 case lltok::lsquare:
1304 // TypeRec ::= '[' ... ']'
1305 Lex.Lex(); // eat the lsquare.
1306 if (ParseArrayVectorType(Result, false))
1309 case lltok::less: // Either vector or packed struct.
1310 // TypeRec ::= '<' ... '>'
1312 if (Lex.getKind() == lltok::lbrace) {
1313 if (ParseStructType(Result, true) ||
1314 ParseToken(lltok::greater, "expected '>' at end of packed struct"))
1316 } else if (ParseArrayVectorType(Result, true))
1319 case lltok::LocalVar:
1320 case lltok::StringConstant: // FIXME: REMOVE IN LLVM 3.0
1322 if (const Type *T = M->getTypeByName(Lex.getStrVal())) {
1325 Result = OpaqueType::get(Context);
1326 ForwardRefTypes.insert(std::make_pair(Lex.getStrVal(),
1327 std::make_pair(Result,
1329 M->addTypeName(Lex.getStrVal(), Result.get());
1334 case lltok::LocalVarID:
1336 if (Lex.getUIntVal() < NumberedTypes.size())
1337 Result = NumberedTypes[Lex.getUIntVal()];
1339 std::map<unsigned, std::pair<PATypeHolder, LocTy> >::iterator
1340 I = ForwardRefTypeIDs.find(Lex.getUIntVal());
1341 if (I != ForwardRefTypeIDs.end())
1342 Result = I->second.first;
1344 Result = OpaqueType::get(Context);
1345 ForwardRefTypeIDs.insert(std::make_pair(Lex.getUIntVal(),
1346 std::make_pair(Result,
1352 case lltok::backslash: {
1353 // TypeRec ::= '\' 4
1356 if (ParseUInt32(Val)) return true;
1357 OpaqueType *OT = OpaqueType::get(Context); //Use temporary placeholder.
1358 UpRefs.push_back(UpRefRecord(Lex.getLoc(), Val, OT));
1364 // Parse the type suffixes.
1366 switch (Lex.getKind()) {
1368 default: return false;
1370 // TypeRec ::= TypeRec '*'
1372 if (Result.get()->isLabelTy())
1373 return TokError("basic block pointers are invalid");
1374 if (Result.get()->isVoidTy())
1375 return TokError("pointers to void are invalid; use i8* instead");
1376 if (!PointerType::isValidElementType(Result.get()))
1377 return TokError("pointer to this type is invalid");
1378 Result = HandleUpRefs(PointerType::getUnqual(Result.get()));
1382 // TypeRec ::= TypeRec 'addrspace' '(' uint32 ')' '*'
1383 case lltok::kw_addrspace: {
1384 if (Result.get()->isLabelTy())
1385 return TokError("basic block pointers are invalid");
1386 if (Result.get()->isVoidTy())
1387 return TokError("pointers to void are invalid; use i8* instead");
1388 if (!PointerType::isValidElementType(Result.get()))
1389 return TokError("pointer to this type is invalid");
1391 if (ParseOptionalAddrSpace(AddrSpace) ||
1392 ParseToken(lltok::star, "expected '*' in address space"))
1395 Result = HandleUpRefs(PointerType::get(Result.get(), AddrSpace));
1399 /// Types '(' ArgTypeListI ')' OptFuncAttrs
1401 if (ParseFunctionType(Result))
1408 /// ParseParameterList
1410 /// ::= '(' Arg (',' Arg)* ')'
1412 /// ::= Type OptionalAttributes Value OptionalAttributes
1413 bool LLParser::ParseParameterList(SmallVectorImpl<ParamInfo> &ArgList,
1414 PerFunctionState &PFS) {
1415 if (ParseToken(lltok::lparen, "expected '(' in call"))
1418 while (Lex.getKind() != lltok::rparen) {
1419 // If this isn't the first argument, we need a comma.
1420 if (!ArgList.empty() &&
1421 ParseToken(lltok::comma, "expected ',' in argument list"))
1424 // Parse the argument.
1426 PATypeHolder ArgTy(Type::getVoidTy(Context));
1427 unsigned ArgAttrs1 = Attribute::None;
1428 unsigned ArgAttrs2 = Attribute::None;
1430 if (ParseType(ArgTy, ArgLoc))
1433 // Otherwise, handle normal operands.
1434 if (ParseOptionalAttrs(ArgAttrs1, 0) ||
1435 ParseValue(ArgTy, V, PFS) ||
1436 // FIXME: Should not allow attributes after the argument, remove this
1438 ParseOptionalAttrs(ArgAttrs2, 3))
1440 ArgList.push_back(ParamInfo(ArgLoc, V, ArgAttrs1|ArgAttrs2));
1443 Lex.Lex(); // Lex the ')'.
1449 /// ParseArgumentList - Parse the argument list for a function type or function
1450 /// prototype. If 'inType' is true then we are parsing a FunctionType.
1451 /// ::= '(' ArgTypeListI ')'
1455 /// ::= ArgTypeList ',' '...'
1456 /// ::= ArgType (',' ArgType)*
1458 bool LLParser::ParseArgumentList(std::vector<ArgInfo> &ArgList,
1459 bool &isVarArg, bool inType) {
1461 assert(Lex.getKind() == lltok::lparen);
1462 Lex.Lex(); // eat the (.
1464 if (Lex.getKind() == lltok::rparen) {
1466 } else if (Lex.getKind() == lltok::dotdotdot) {
1470 LocTy TypeLoc = Lex.getLoc();
1471 PATypeHolder ArgTy(Type::getVoidTy(Context));
1475 // If we're parsing a type, use ParseTypeRec, because we allow recursive
1476 // types (such as a function returning a pointer to itself). If parsing a
1477 // function prototype, we require fully resolved types.
1478 if ((inType ? ParseTypeRec(ArgTy) : ParseType(ArgTy)) ||
1479 ParseOptionalAttrs(Attrs, 0)) return true;
1481 if (ArgTy->isVoidTy())
1482 return Error(TypeLoc, "argument can not have void type");
1484 if (Lex.getKind() == lltok::LocalVar ||
1485 Lex.getKind() == lltok::StringConstant) { // FIXME: REMOVE IN LLVM 3.0
1486 Name = Lex.getStrVal();
1490 if (!FunctionType::isValidArgumentType(ArgTy))
1491 return Error(TypeLoc, "invalid type for function argument");
1493 ArgList.push_back(ArgInfo(TypeLoc, ArgTy, Attrs, Name));
1495 while (EatIfPresent(lltok::comma)) {
1496 // Handle ... at end of arg list.
1497 if (EatIfPresent(lltok::dotdotdot)) {
1502 // Otherwise must be an argument type.
1503 TypeLoc = Lex.getLoc();
1504 if ((inType ? ParseTypeRec(ArgTy) : ParseType(ArgTy)) ||
1505 ParseOptionalAttrs(Attrs, 0)) return true;
1507 if (ArgTy->isVoidTy())
1508 return Error(TypeLoc, "argument can not have void type");
1510 if (Lex.getKind() == lltok::LocalVar ||
1511 Lex.getKind() == lltok::StringConstant) { // FIXME: REMOVE IN LLVM 3.0
1512 Name = Lex.getStrVal();
1518 if (!ArgTy->isFirstClassType() && !ArgTy->isOpaqueTy())
1519 return Error(TypeLoc, "invalid type for function argument");
1521 ArgList.push_back(ArgInfo(TypeLoc, ArgTy, Attrs, Name));
1525 return ParseToken(lltok::rparen, "expected ')' at end of argument list");
1528 /// ParseFunctionType
1529 /// ::= Type ArgumentList OptionalAttrs
1530 bool LLParser::ParseFunctionType(PATypeHolder &Result) {
1531 assert(Lex.getKind() == lltok::lparen);
1533 if (!FunctionType::isValidReturnType(Result))
1534 return TokError("invalid function return type");
1536 std::vector<ArgInfo> ArgList;
1539 if (ParseArgumentList(ArgList, isVarArg, true) ||
1540 // FIXME: Allow, but ignore attributes on function types!
1541 // FIXME: Remove in LLVM 3.0
1542 ParseOptionalAttrs(Attrs, 2))
1545 // Reject names on the arguments lists.
1546 for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
1547 if (!ArgList[i].Name.empty())
1548 return Error(ArgList[i].Loc, "argument name invalid in function type");
1549 if (!ArgList[i].Attrs != 0) {
1550 // Allow but ignore attributes on function types; this permits
1552 // FIXME: REJECT ATTRIBUTES ON FUNCTION TYPES in LLVM 3.0
1556 std::vector<const Type*> ArgListTy;
1557 for (unsigned i = 0, e = ArgList.size(); i != e; ++i)
1558 ArgListTy.push_back(ArgList[i].Type);
1560 Result = HandleUpRefs(FunctionType::get(Result.get(),
1561 ArgListTy, isVarArg));
1565 /// ParseStructType: Handles packed and unpacked types. </> parsed elsewhere.
1568 /// ::= '{' TypeRec (',' TypeRec)* '}'
1569 /// ::= '<' '{' '}' '>'
1570 /// ::= '<' '{' TypeRec (',' TypeRec)* '}' '>'
1571 bool LLParser::ParseStructType(PATypeHolder &Result, bool Packed) {
1572 assert(Lex.getKind() == lltok::lbrace);
1573 Lex.Lex(); // Consume the '{'
1575 if (EatIfPresent(lltok::rbrace)) {
1576 Result = StructType::get(Context, Packed);
1580 std::vector<PATypeHolder> ParamsList;
1581 LocTy EltTyLoc = Lex.getLoc();
1582 if (ParseTypeRec(Result)) return true;
1583 ParamsList.push_back(Result);
1585 if (Result->isVoidTy())
1586 return Error(EltTyLoc, "struct element can not have void type");
1587 if (!StructType::isValidElementType(Result))
1588 return Error(EltTyLoc, "invalid element type for struct");
1590 while (EatIfPresent(lltok::comma)) {
1591 EltTyLoc = Lex.getLoc();
1592 if (ParseTypeRec(Result)) return true;
1594 if (Result->isVoidTy())
1595 return Error(EltTyLoc, "struct element can not have void type");
1596 if (!StructType::isValidElementType(Result))
1597 return Error(EltTyLoc, "invalid element type for struct");
1599 ParamsList.push_back(Result);
1602 if (ParseToken(lltok::rbrace, "expected '}' at end of struct"))
1605 std::vector<const Type*> ParamsListTy;
1606 for (unsigned i = 0, e = ParamsList.size(); i != e; ++i)
1607 ParamsListTy.push_back(ParamsList[i].get());
1608 Result = HandleUpRefs(StructType::get(Context, ParamsListTy, Packed));
1614 /// ::= 'union' '{' TypeRec (',' TypeRec)* '}'
1615 bool LLParser::ParseUnionType(PATypeHolder &Result) {
1616 assert(Lex.getKind() == lltok::kw_union);
1617 Lex.Lex(); // Consume the 'union'
1619 if (ParseToken(lltok::lbrace, "'{' expected after 'union'")) return true;
1621 SmallVector<PATypeHolder, 8> ParamsList;
1623 LocTy EltTyLoc = Lex.getLoc();
1624 if (ParseTypeRec(Result)) return true;
1625 ParamsList.push_back(Result);
1627 if (Result->isVoidTy())
1628 return Error(EltTyLoc, "union element can not have void type");
1629 if (!UnionType::isValidElementType(Result))
1630 return Error(EltTyLoc, "invalid element type for union");
1632 } while (EatIfPresent(lltok::comma)) ;
1634 if (ParseToken(lltok::rbrace, "expected '}' at end of union"))
1637 SmallVector<const Type*, 8> ParamsListTy;
1638 for (unsigned i = 0, e = ParamsList.size(); i != e; ++i)
1639 ParamsListTy.push_back(ParamsList[i].get());
1640 Result = HandleUpRefs(UnionType::get(&ParamsListTy[0], ParamsListTy.size()));
1644 /// ParseArrayVectorType - Parse an array or vector type, assuming the first
1645 /// token has already been consumed.
1647 /// ::= '[' APSINTVAL 'x' Types ']'
1648 /// ::= '<' APSINTVAL 'x' Types '>'
1649 bool LLParser::ParseArrayVectorType(PATypeHolder &Result, bool isVector) {
1650 if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned() ||
1651 Lex.getAPSIntVal().getBitWidth() > 64)
1652 return TokError("expected number in address space");
1654 LocTy SizeLoc = Lex.getLoc();
1655 uint64_t Size = Lex.getAPSIntVal().getZExtValue();
1658 if (ParseToken(lltok::kw_x, "expected 'x' after element count"))
1661 LocTy TypeLoc = Lex.getLoc();
1662 PATypeHolder EltTy(Type::getVoidTy(Context));
1663 if (ParseTypeRec(EltTy)) return true;
1665 if (EltTy->isVoidTy())
1666 return Error(TypeLoc, "array and vector element type cannot be void");
1668 if (ParseToken(isVector ? lltok::greater : lltok::rsquare,
1669 "expected end of sequential type"))
1674 return Error(SizeLoc, "zero element vector is illegal");
1675 if ((unsigned)Size != Size)
1676 return Error(SizeLoc, "size too large for vector");
1677 if (!VectorType::isValidElementType(EltTy))
1678 return Error(TypeLoc, "vector element type must be fp or integer");
1679 Result = VectorType::get(EltTy, unsigned(Size));
1681 if (!ArrayType::isValidElementType(EltTy))
1682 return Error(TypeLoc, "invalid array element type");
1683 Result = HandleUpRefs(ArrayType::get(EltTy, Size));
1688 //===----------------------------------------------------------------------===//
1689 // Function Semantic Analysis.
1690 //===----------------------------------------------------------------------===//
1692 LLParser::PerFunctionState::PerFunctionState(LLParser &p, Function &f,
1694 : P(p), F(f), FunctionNumber(functionNumber) {
1696 // Insert unnamed arguments into the NumberedVals list.
1697 for (Function::arg_iterator AI = F.arg_begin(), E = F.arg_end();
1700 NumberedVals.push_back(AI);
1703 LLParser::PerFunctionState::~PerFunctionState() {
1704 // If there were any forward referenced non-basicblock values, delete them.
1705 for (std::map<std::string, std::pair<Value*, LocTy> >::iterator
1706 I = ForwardRefVals.begin(), E = ForwardRefVals.end(); I != E; ++I)
1707 if (!isa<BasicBlock>(I->second.first)) {
1708 I->second.first->replaceAllUsesWith(
1709 UndefValue::get(I->second.first->getType()));
1710 delete I->second.first;
1711 I->second.first = 0;
1714 for (std::map<unsigned, std::pair<Value*, LocTy> >::iterator
1715 I = ForwardRefValIDs.begin(), E = ForwardRefValIDs.end(); I != E; ++I)
1716 if (!isa<BasicBlock>(I->second.first)) {
1717 I->second.first->replaceAllUsesWith(
1718 UndefValue::get(I->second.first->getType()));
1719 delete I->second.first;
1720 I->second.first = 0;
1724 bool LLParser::PerFunctionState::FinishFunction() {
1725 // Check to see if someone took the address of labels in this block.
1726 if (!P.ForwardRefBlockAddresses.empty()) {
1728 if (!F.getName().empty()) {
1729 FunctionID.Kind = ValID::t_GlobalName;
1730 FunctionID.StrVal = F.getName();
1732 FunctionID.Kind = ValID::t_GlobalID;
1733 FunctionID.UIntVal = FunctionNumber;
1736 std::map<ValID, std::vector<std::pair<ValID, GlobalValue*> > >::iterator
1737 FRBAI = P.ForwardRefBlockAddresses.find(FunctionID);
1738 if (FRBAI != P.ForwardRefBlockAddresses.end()) {
1739 // Resolve all these references.
1740 if (P.ResolveForwardRefBlockAddresses(&F, FRBAI->second, this))
1743 P.ForwardRefBlockAddresses.erase(FRBAI);
1747 if (!ForwardRefVals.empty())
1748 return P.Error(ForwardRefVals.begin()->second.second,
1749 "use of undefined value '%" + ForwardRefVals.begin()->first +
1751 if (!ForwardRefValIDs.empty())
1752 return P.Error(ForwardRefValIDs.begin()->second.second,
1753 "use of undefined value '%" +
1754 utostr(ForwardRefValIDs.begin()->first) + "'");
1759 /// GetVal - Get a value with the specified name or ID, creating a
1760 /// forward reference record if needed. This can return null if the value
1761 /// exists but does not have the right type.
1762 Value *LLParser::PerFunctionState::GetVal(const std::string &Name,
1763 const Type *Ty, LocTy Loc) {
1764 // Look this name up in the normal function symbol table.
1765 Value *Val = F.getValueSymbolTable().lookup(Name);
1767 // If this is a forward reference for the value, see if we already created a
1768 // forward ref record.
1770 std::map<std::string, std::pair<Value*, LocTy> >::iterator
1771 I = ForwardRefVals.find(Name);
1772 if (I != ForwardRefVals.end())
1773 Val = I->second.first;
1776 // If we have the value in the symbol table or fwd-ref table, return it.
1778 if (Val->getType() == Ty) return Val;
1779 if (Ty->isLabelTy())
1780 P.Error(Loc, "'%" + Name + "' is not a basic block");
1782 P.Error(Loc, "'%" + Name + "' defined with type '" +
1783 Val->getType()->getDescription() + "'");
1787 // Don't make placeholders with invalid type.
1788 if (!Ty->isFirstClassType() && !Ty->isOpaqueTy() && !Ty->isLabelTy()) {
1789 P.Error(Loc, "invalid use of a non-first-class type");
1793 // Otherwise, create a new forward reference for this value and remember it.
1795 if (Ty->isLabelTy())
1796 FwdVal = BasicBlock::Create(F.getContext(), Name, &F);
1798 FwdVal = new Argument(Ty, Name);
1800 ForwardRefVals[Name] = std::make_pair(FwdVal, Loc);
1804 Value *LLParser::PerFunctionState::GetVal(unsigned ID, const Type *Ty,
1806 // Look this name up in the normal function symbol table.
1807 Value *Val = ID < NumberedVals.size() ? NumberedVals[ID] : 0;
1809 // If this is a forward reference for the value, see if we already created a
1810 // forward ref record.
1812 std::map<unsigned, std::pair<Value*, LocTy> >::iterator
1813 I = ForwardRefValIDs.find(ID);
1814 if (I != ForwardRefValIDs.end())
1815 Val = I->second.first;
1818 // If we have the value in the symbol table or fwd-ref table, return it.
1820 if (Val->getType() == Ty) return Val;
1821 if (Ty->isLabelTy())
1822 P.Error(Loc, "'%" + utostr(ID) + "' is not a basic block");
1824 P.Error(Loc, "'%" + utostr(ID) + "' defined with type '" +
1825 Val->getType()->getDescription() + "'");
1829 if (!Ty->isFirstClassType() && !Ty->isOpaqueTy() && !Ty->isLabelTy()) {
1830 P.Error(Loc, "invalid use of a non-first-class type");
1834 // Otherwise, create a new forward reference for this value and remember it.
1836 if (Ty->isLabelTy())
1837 FwdVal = BasicBlock::Create(F.getContext(), "", &F);
1839 FwdVal = new Argument(Ty);
1841 ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc);
1845 /// SetInstName - After an instruction is parsed and inserted into its
1846 /// basic block, this installs its name.
1847 bool LLParser::PerFunctionState::SetInstName(int NameID,
1848 const std::string &NameStr,
1849 LocTy NameLoc, Instruction *Inst) {
1850 // If this instruction has void type, it cannot have a name or ID specified.
1851 if (Inst->getType()->isVoidTy()) {
1852 if (NameID != -1 || !NameStr.empty())
1853 return P.Error(NameLoc, "instructions returning void cannot have a name");
1857 // If this was a numbered instruction, verify that the instruction is the
1858 // expected value and resolve any forward references.
1859 if (NameStr.empty()) {
1860 // If neither a name nor an ID was specified, just use the next ID.
1862 NameID = NumberedVals.size();
1864 if (unsigned(NameID) != NumberedVals.size())
1865 return P.Error(NameLoc, "instruction expected to be numbered '%" +
1866 utostr(NumberedVals.size()) + "'");
1868 std::map<unsigned, std::pair<Value*, LocTy> >::iterator FI =
1869 ForwardRefValIDs.find(NameID);
1870 if (FI != ForwardRefValIDs.end()) {
1871 if (FI->second.first->getType() != Inst->getType())
1872 return P.Error(NameLoc, "instruction forward referenced with type '" +
1873 FI->second.first->getType()->getDescription() + "'");
1874 FI->second.first->replaceAllUsesWith(Inst);
1875 delete FI->second.first;
1876 ForwardRefValIDs.erase(FI);
1879 NumberedVals.push_back(Inst);
1883 // Otherwise, the instruction had a name. Resolve forward refs and set it.
1884 std::map<std::string, std::pair<Value*, LocTy> >::iterator
1885 FI = ForwardRefVals.find(NameStr);
1886 if (FI != ForwardRefVals.end()) {
1887 if (FI->second.first->getType() != Inst->getType())
1888 return P.Error(NameLoc, "instruction forward referenced with type '" +
1889 FI->second.first->getType()->getDescription() + "'");
1890 FI->second.first->replaceAllUsesWith(Inst);
1891 delete FI->second.first;
1892 ForwardRefVals.erase(FI);
1895 // Set the name on the instruction.
1896 Inst->setName(NameStr);
1898 if (Inst->getNameStr() != NameStr)
1899 return P.Error(NameLoc, "multiple definition of local value named '" +
1904 /// GetBB - Get a basic block with the specified name or ID, creating a
1905 /// forward reference record if needed.
1906 BasicBlock *LLParser::PerFunctionState::GetBB(const std::string &Name,
1908 return cast_or_null<BasicBlock>(GetVal(Name,
1909 Type::getLabelTy(F.getContext()), Loc));
1912 BasicBlock *LLParser::PerFunctionState::GetBB(unsigned ID, LocTy Loc) {
1913 return cast_or_null<BasicBlock>(GetVal(ID,
1914 Type::getLabelTy(F.getContext()), Loc));
1917 /// DefineBB - Define the specified basic block, which is either named or
1918 /// unnamed. If there is an error, this returns null otherwise it returns
1919 /// the block being defined.
1920 BasicBlock *LLParser::PerFunctionState::DefineBB(const std::string &Name,
1924 BB = GetBB(NumberedVals.size(), Loc);
1926 BB = GetBB(Name, Loc);
1927 if (BB == 0) return 0; // Already diagnosed error.
1929 // Move the block to the end of the function. Forward ref'd blocks are
1930 // inserted wherever they happen to be referenced.
1931 F.getBasicBlockList().splice(F.end(), F.getBasicBlockList(), BB);
1933 // Remove the block from forward ref sets.
1935 ForwardRefValIDs.erase(NumberedVals.size());
1936 NumberedVals.push_back(BB);
1938 // BB forward references are already in the function symbol table.
1939 ForwardRefVals.erase(Name);
1945 //===----------------------------------------------------------------------===//
1947 //===----------------------------------------------------------------------===//
1949 /// ParseValID - Parse an abstract value that doesn't necessarily have a
1950 /// type implied. For example, if we parse "4" we don't know what integer type
1951 /// it has. The value will later be combined with its type and checked for
1952 /// sanity. PFS is used to convert function-local operands of metadata (since
1953 /// metadata operands are not just parsed here but also converted to values).
1954 /// PFS can be null when we are not parsing metadata values inside a function.
1955 bool LLParser::ParseValID(ValID &ID, PerFunctionState *PFS) {
1956 ID.Loc = Lex.getLoc();
1957 switch (Lex.getKind()) {
1958 default: return TokError("expected value token");
1959 case lltok::GlobalID: // @42
1960 ID.UIntVal = Lex.getUIntVal();
1961 ID.Kind = ValID::t_GlobalID;
1963 case lltok::GlobalVar: // @foo
1964 ID.StrVal = Lex.getStrVal();
1965 ID.Kind = ValID::t_GlobalName;
1967 case lltok::LocalVarID: // %42
1968 ID.UIntVal = Lex.getUIntVal();
1969 ID.Kind = ValID::t_LocalID;
1971 case lltok::LocalVar: // %foo
1972 case lltok::StringConstant: // "foo" - FIXME: REMOVE IN LLVM 3.0
1973 ID.StrVal = Lex.getStrVal();
1974 ID.Kind = ValID::t_LocalName;
1976 case lltok::exclaim: // !{...} MDNode, !"foo" MDString
1979 if (EatIfPresent(lltok::lbrace)) {
1980 SmallVector<Value*, 16> Elts;
1981 if (ParseMDNodeVector(Elts, PFS) ||
1982 ParseToken(lltok::rbrace, "expected end of metadata node"))
1985 ID.MDNodeVal = MDNode::get(Context, Elts.data(), Elts.size());
1986 ID.Kind = ValID::t_MDNode;
1990 // Standalone metadata reference
1991 // !{ ..., !42, ... }
1992 if (Lex.getKind() == lltok::APSInt) {
1993 if (ParseMDNodeID(ID.MDNodeVal)) return true;
1994 ID.Kind = ValID::t_MDNode;
1999 // ::= '!' STRINGCONSTANT
2000 if (ParseMDString(ID.MDStringVal)) return true;
2001 ID.Kind = ValID::t_MDString;
2004 ID.APSIntVal = Lex.getAPSIntVal();
2005 ID.Kind = ValID::t_APSInt;
2007 case lltok::APFloat:
2008 ID.APFloatVal = Lex.getAPFloatVal();
2009 ID.Kind = ValID::t_APFloat;
2011 case lltok::kw_true:
2012 ID.ConstantVal = ConstantInt::getTrue(Context);
2013 ID.Kind = ValID::t_Constant;
2015 case lltok::kw_false:
2016 ID.ConstantVal = ConstantInt::getFalse(Context);
2017 ID.Kind = ValID::t_Constant;
2019 case lltok::kw_null: ID.Kind = ValID::t_Null; break;
2020 case lltok::kw_undef: ID.Kind = ValID::t_Undef; break;
2021 case lltok::kw_zeroinitializer: ID.Kind = ValID::t_Zero; break;
2023 case lltok::lbrace: {
2024 // ValID ::= '{' ConstVector '}'
2026 SmallVector<Constant*, 16> Elts;
2027 if (ParseGlobalValueVector(Elts) ||
2028 ParseToken(lltok::rbrace, "expected end of struct constant"))
2031 ID.ConstantVal = ConstantStruct::get(Context, Elts.data(),
2032 Elts.size(), false);
2033 ID.Kind = ValID::t_Constant;
2037 // ValID ::= '<' ConstVector '>' --> Vector.
2038 // ValID ::= '<' '{' ConstVector '}' '>' --> Packed Struct.
2040 bool isPackedStruct = EatIfPresent(lltok::lbrace);
2042 SmallVector<Constant*, 16> Elts;
2043 LocTy FirstEltLoc = Lex.getLoc();
2044 if (ParseGlobalValueVector(Elts) ||
2046 ParseToken(lltok::rbrace, "expected end of packed struct")) ||
2047 ParseToken(lltok::greater, "expected end of constant"))
2050 if (isPackedStruct) {
2052 ConstantStruct::get(Context, Elts.data(), Elts.size(), true);
2053 ID.Kind = ValID::t_Constant;
2058 return Error(ID.Loc, "constant vector must not be empty");
2060 if (!Elts[0]->getType()->isIntegerTy() &&
2061 !Elts[0]->getType()->isFloatingPointTy())
2062 return Error(FirstEltLoc,
2063 "vector elements must have integer or floating point type");
2065 // Verify that all the vector elements have the same type.
2066 for (unsigned i = 1, e = Elts.size(); i != e; ++i)
2067 if (Elts[i]->getType() != Elts[0]->getType())
2068 return Error(FirstEltLoc,
2069 "vector element #" + utostr(i) +
2070 " is not of type '" + Elts[0]->getType()->getDescription());
2072 ID.ConstantVal = ConstantVector::get(Elts.data(), Elts.size());
2073 ID.Kind = ValID::t_Constant;
2076 case lltok::lsquare: { // Array Constant
2078 SmallVector<Constant*, 16> Elts;
2079 LocTy FirstEltLoc = Lex.getLoc();
2080 if (ParseGlobalValueVector(Elts) ||
2081 ParseToken(lltok::rsquare, "expected end of array constant"))
2084 // Handle empty element.
2086 // Use undef instead of an array because it's inconvenient to determine
2087 // the element type at this point, there being no elements to examine.
2088 ID.Kind = ValID::t_EmptyArray;
2092 if (!Elts[0]->getType()->isFirstClassType())
2093 return Error(FirstEltLoc, "invalid array element type: " +
2094 Elts[0]->getType()->getDescription());
2096 ArrayType *ATy = ArrayType::get(Elts[0]->getType(), Elts.size());
2098 // Verify all elements are correct type!
2099 for (unsigned i = 0, e = Elts.size(); i != e; ++i) {
2100 if (Elts[i]->getType() != Elts[0]->getType())
2101 return Error(FirstEltLoc,
2102 "array element #" + utostr(i) +
2103 " is not of type '" +Elts[0]->getType()->getDescription());
2106 ID.ConstantVal = ConstantArray::get(ATy, Elts.data(), Elts.size());
2107 ID.Kind = ValID::t_Constant;
2110 case lltok::kw_c: // c "foo"
2112 ID.ConstantVal = ConstantArray::get(Context, Lex.getStrVal(), false);
2113 if (ParseToken(lltok::StringConstant, "expected string")) return true;
2114 ID.Kind = ValID::t_Constant;
2117 case lltok::kw_asm: {
2118 // ValID ::= 'asm' SideEffect? AlignStack? STRINGCONSTANT ',' STRINGCONSTANT
2119 bool HasSideEffect, AlignStack;
2121 if (ParseOptionalToken(lltok::kw_sideeffect, HasSideEffect) ||
2122 ParseOptionalToken(lltok::kw_alignstack, AlignStack) ||
2123 ParseStringConstant(ID.StrVal) ||
2124 ParseToken(lltok::comma, "expected comma in inline asm expression") ||
2125 ParseToken(lltok::StringConstant, "expected constraint string"))
2127 ID.StrVal2 = Lex.getStrVal();
2128 ID.UIntVal = unsigned(HasSideEffect) | (unsigned(AlignStack)<<1);
2129 ID.Kind = ValID::t_InlineAsm;
2133 case lltok::kw_blockaddress: {
2134 // ValID ::= 'blockaddress' '(' @foo ',' %bar ')'
2138 LocTy FnLoc, LabelLoc;
2140 if (ParseToken(lltok::lparen, "expected '(' in block address expression") ||
2142 ParseToken(lltok::comma, "expected comma in block address expression")||
2143 ParseValID(Label) ||
2144 ParseToken(lltok::rparen, "expected ')' in block address expression"))
2147 if (Fn.Kind != ValID::t_GlobalID && Fn.Kind != ValID::t_GlobalName)
2148 return Error(Fn.Loc, "expected function name in blockaddress");
2149 if (Label.Kind != ValID::t_LocalID && Label.Kind != ValID::t_LocalName)
2150 return Error(Label.Loc, "expected basic block name in blockaddress");
2152 // Make a global variable as a placeholder for this reference.
2153 GlobalVariable *FwdRef = new GlobalVariable(*M, Type::getInt8Ty(Context),
2154 false, GlobalValue::InternalLinkage,
2156 ForwardRefBlockAddresses[Fn].push_back(std::make_pair(Label, FwdRef));
2157 ID.ConstantVal = FwdRef;
2158 ID.Kind = ValID::t_Constant;
2162 case lltok::kw_trunc:
2163 case lltok::kw_zext:
2164 case lltok::kw_sext:
2165 case lltok::kw_fptrunc:
2166 case lltok::kw_fpext:
2167 case lltok::kw_bitcast:
2168 case lltok::kw_uitofp:
2169 case lltok::kw_sitofp:
2170 case lltok::kw_fptoui:
2171 case lltok::kw_fptosi:
2172 case lltok::kw_inttoptr:
2173 case lltok::kw_ptrtoint: {
2174 unsigned Opc = Lex.getUIntVal();
2175 PATypeHolder DestTy(Type::getVoidTy(Context));
2178 if (ParseToken(lltok::lparen, "expected '(' after constantexpr cast") ||
2179 ParseGlobalTypeAndValue(SrcVal) ||
2180 ParseToken(lltok::kw_to, "expected 'to' in constantexpr cast") ||
2181 ParseType(DestTy) ||
2182 ParseToken(lltok::rparen, "expected ')' at end of constantexpr cast"))
2184 if (!CastInst::castIsValid((Instruction::CastOps)Opc, SrcVal, DestTy))
2185 return Error(ID.Loc, "invalid cast opcode for cast from '" +
2186 SrcVal->getType()->getDescription() + "' to '" +
2187 DestTy->getDescription() + "'");
2188 ID.ConstantVal = ConstantExpr::getCast((Instruction::CastOps)Opc,
2190 ID.Kind = ValID::t_Constant;
2193 case lltok::kw_extractvalue: {
2196 SmallVector<unsigned, 4> Indices;
2197 if (ParseToken(lltok::lparen, "expected '(' in extractvalue constantexpr")||
2198 ParseGlobalTypeAndValue(Val) ||
2199 ParseIndexList(Indices) ||
2200 ParseToken(lltok::rparen, "expected ')' in extractvalue constantexpr"))
2203 if (!Val->getType()->isAggregateType())
2204 return Error(ID.Loc, "extractvalue operand must be aggregate type");
2205 if (!ExtractValueInst::getIndexedType(Val->getType(), Indices.begin(),
2207 return Error(ID.Loc, "invalid indices for extractvalue");
2209 ConstantExpr::getExtractValue(Val, Indices.data(), Indices.size());
2210 ID.Kind = ValID::t_Constant;
2213 case lltok::kw_insertvalue: {
2215 Constant *Val0, *Val1;
2216 SmallVector<unsigned, 4> Indices;
2217 if (ParseToken(lltok::lparen, "expected '(' in insertvalue constantexpr")||
2218 ParseGlobalTypeAndValue(Val0) ||
2219 ParseToken(lltok::comma, "expected comma in insertvalue constantexpr")||
2220 ParseGlobalTypeAndValue(Val1) ||
2221 ParseIndexList(Indices) ||
2222 ParseToken(lltok::rparen, "expected ')' in insertvalue constantexpr"))
2224 if (!Val0->getType()->isAggregateType())
2225 return Error(ID.Loc, "insertvalue operand must be aggregate type");
2226 if (!ExtractValueInst::getIndexedType(Val0->getType(), Indices.begin(),
2228 return Error(ID.Loc, "invalid indices for insertvalue");
2229 ID.ConstantVal = ConstantExpr::getInsertValue(Val0, Val1,
2230 Indices.data(), Indices.size());
2231 ID.Kind = ValID::t_Constant;
2234 case lltok::kw_icmp:
2235 case lltok::kw_fcmp: {
2236 unsigned PredVal, Opc = Lex.getUIntVal();
2237 Constant *Val0, *Val1;
2239 if (ParseCmpPredicate(PredVal, Opc) ||
2240 ParseToken(lltok::lparen, "expected '(' in compare constantexpr") ||
2241 ParseGlobalTypeAndValue(Val0) ||
2242 ParseToken(lltok::comma, "expected comma in compare constantexpr") ||
2243 ParseGlobalTypeAndValue(Val1) ||
2244 ParseToken(lltok::rparen, "expected ')' in compare constantexpr"))
2247 if (Val0->getType() != Val1->getType())
2248 return Error(ID.Loc, "compare operands must have the same type");
2250 CmpInst::Predicate Pred = (CmpInst::Predicate)PredVal;
2252 if (Opc == Instruction::FCmp) {
2253 if (!Val0->getType()->isFPOrFPVectorTy())
2254 return Error(ID.Loc, "fcmp requires floating point operands");
2255 ID.ConstantVal = ConstantExpr::getFCmp(Pred, Val0, Val1);
2257 assert(Opc == Instruction::ICmp && "Unexpected opcode for CmpInst!");
2258 if (!Val0->getType()->isIntOrIntVectorTy() &&
2259 !Val0->getType()->isPointerTy())
2260 return Error(ID.Loc, "icmp requires pointer or integer operands");
2261 ID.ConstantVal = ConstantExpr::getICmp(Pred, Val0, Val1);
2263 ID.Kind = ValID::t_Constant;
2267 // Binary Operators.
2269 case lltok::kw_fadd:
2271 case lltok::kw_fsub:
2273 case lltok::kw_fmul:
2274 case lltok::kw_udiv:
2275 case lltok::kw_sdiv:
2276 case lltok::kw_fdiv:
2277 case lltok::kw_urem:
2278 case lltok::kw_srem:
2279 case lltok::kw_frem: {
2283 unsigned Opc = Lex.getUIntVal();
2284 Constant *Val0, *Val1;
2286 LocTy ModifierLoc = Lex.getLoc();
2287 if (Opc == Instruction::Add ||
2288 Opc == Instruction::Sub ||
2289 Opc == Instruction::Mul) {
2290 if (EatIfPresent(lltok::kw_nuw))
2292 if (EatIfPresent(lltok::kw_nsw)) {
2294 if (EatIfPresent(lltok::kw_nuw))
2297 } else if (Opc == Instruction::SDiv) {
2298 if (EatIfPresent(lltok::kw_exact))
2301 if (ParseToken(lltok::lparen, "expected '(' in binary constantexpr") ||
2302 ParseGlobalTypeAndValue(Val0) ||
2303 ParseToken(lltok::comma, "expected comma in binary constantexpr") ||
2304 ParseGlobalTypeAndValue(Val1) ||
2305 ParseToken(lltok::rparen, "expected ')' in binary constantexpr"))
2307 if (Val0->getType() != Val1->getType())
2308 return Error(ID.Loc, "operands of constexpr must have same type");
2309 if (!Val0->getType()->isIntOrIntVectorTy()) {
2311 return Error(ModifierLoc, "nuw only applies to integer operations");
2313 return Error(ModifierLoc, "nsw only applies to integer operations");
2315 // API compatibility: Accept either integer or floating-point types with
2316 // add, sub, and mul.
2317 if (!Val0->getType()->isIntOrIntVectorTy() &&
2318 !Val0->getType()->isFPOrFPVectorTy())
2319 return Error(ID.Loc,"constexpr requires integer, fp, or vector operands");
2321 if (NUW) Flags |= OverflowingBinaryOperator::NoUnsignedWrap;
2322 if (NSW) Flags |= OverflowingBinaryOperator::NoSignedWrap;
2323 if (Exact) Flags |= SDivOperator::IsExact;
2324 Constant *C = ConstantExpr::get(Opc, Val0, Val1, Flags);
2326 ID.Kind = ValID::t_Constant;
2330 // Logical Operations
2332 case lltok::kw_lshr:
2333 case lltok::kw_ashr:
2336 case lltok::kw_xor: {
2337 unsigned Opc = Lex.getUIntVal();
2338 Constant *Val0, *Val1;
2340 if (ParseToken(lltok::lparen, "expected '(' in logical constantexpr") ||
2341 ParseGlobalTypeAndValue(Val0) ||
2342 ParseToken(lltok::comma, "expected comma in logical constantexpr") ||
2343 ParseGlobalTypeAndValue(Val1) ||
2344 ParseToken(lltok::rparen, "expected ')' in logical constantexpr"))
2346 if (Val0->getType() != Val1->getType())
2347 return Error(ID.Loc, "operands of constexpr must have same type");
2348 if (!Val0->getType()->isIntOrIntVectorTy())
2349 return Error(ID.Loc,
2350 "constexpr requires integer or integer vector operands");
2351 ID.ConstantVal = ConstantExpr::get(Opc, Val0, Val1);
2352 ID.Kind = ValID::t_Constant;
2356 case lltok::kw_getelementptr:
2357 case lltok::kw_shufflevector:
2358 case lltok::kw_insertelement:
2359 case lltok::kw_extractelement:
2360 case lltok::kw_select: {
2361 unsigned Opc = Lex.getUIntVal();
2362 SmallVector<Constant*, 16> Elts;
2363 bool InBounds = false;
2365 if (Opc == Instruction::GetElementPtr)
2366 InBounds = EatIfPresent(lltok::kw_inbounds);
2367 if (ParseToken(lltok::lparen, "expected '(' in constantexpr") ||
2368 ParseGlobalValueVector(Elts) ||
2369 ParseToken(lltok::rparen, "expected ')' in constantexpr"))
2372 if (Opc == Instruction::GetElementPtr) {
2373 if (Elts.size() == 0 || !Elts[0]->getType()->isPointerTy())
2374 return Error(ID.Loc, "getelementptr requires pointer operand");
2376 if (!GetElementPtrInst::getIndexedType(Elts[0]->getType(),
2377 (Value**)(Elts.data() + 1),
2379 return Error(ID.Loc, "invalid indices for getelementptr");
2380 ID.ConstantVal = InBounds ?
2381 ConstantExpr::getInBoundsGetElementPtr(Elts[0],
2384 ConstantExpr::getGetElementPtr(Elts[0],
2385 Elts.data() + 1, Elts.size() - 1);
2386 } else if (Opc == Instruction::Select) {
2387 if (Elts.size() != 3)
2388 return Error(ID.Loc, "expected three operands to select");
2389 if (const char *Reason = SelectInst::areInvalidOperands(Elts[0], Elts[1],
2391 return Error(ID.Loc, Reason);
2392 ID.ConstantVal = ConstantExpr::getSelect(Elts[0], Elts[1], Elts[2]);
2393 } else if (Opc == Instruction::ShuffleVector) {
2394 if (Elts.size() != 3)
2395 return Error(ID.Loc, "expected three operands to shufflevector");
2396 if (!ShuffleVectorInst::isValidOperands(Elts[0], Elts[1], Elts[2]))
2397 return Error(ID.Loc, "invalid operands to shufflevector");
2399 ConstantExpr::getShuffleVector(Elts[0], Elts[1],Elts[2]);
2400 } else if (Opc == Instruction::ExtractElement) {
2401 if (Elts.size() != 2)
2402 return Error(ID.Loc, "expected two operands to extractelement");
2403 if (!ExtractElementInst::isValidOperands(Elts[0], Elts[1]))
2404 return Error(ID.Loc, "invalid extractelement operands");
2405 ID.ConstantVal = ConstantExpr::getExtractElement(Elts[0], Elts[1]);
2407 assert(Opc == Instruction::InsertElement && "Unknown opcode");
2408 if (Elts.size() != 3)
2409 return Error(ID.Loc, "expected three operands to insertelement");
2410 if (!InsertElementInst::isValidOperands(Elts[0], Elts[1], Elts[2]))
2411 return Error(ID.Loc, "invalid insertelement operands");
2413 ConstantExpr::getInsertElement(Elts[0], Elts[1],Elts[2]);
2416 ID.Kind = ValID::t_Constant;
2425 /// ParseGlobalValue - Parse a global value with the specified type.
2426 bool LLParser::ParseGlobalValue(const Type *Ty, Constant *&C) {
2430 bool Parsed = ParseValID(ID) ||
2431 ConvertValIDToValue(Ty, ID, V, NULL);
2432 if (V && !(C = dyn_cast<Constant>(V)))
2433 return Error(ID.Loc, "global values must be constants");
2437 bool LLParser::ParseGlobalTypeAndValue(Constant *&V) {
2438 PATypeHolder Type(Type::getVoidTy(Context));
2439 return ParseType(Type) ||
2440 ParseGlobalValue(Type, V);
2443 /// ParseGlobalValueVector
2445 /// ::= TypeAndValue (',' TypeAndValue)*
2446 bool LLParser::ParseGlobalValueVector(SmallVectorImpl<Constant*> &Elts) {
2448 if (Lex.getKind() == lltok::rbrace ||
2449 Lex.getKind() == lltok::rsquare ||
2450 Lex.getKind() == lltok::greater ||
2451 Lex.getKind() == lltok::rparen)
2455 if (ParseGlobalTypeAndValue(C)) return true;
2458 while (EatIfPresent(lltok::comma)) {
2459 if (ParseGlobalTypeAndValue(C)) return true;
2467 //===----------------------------------------------------------------------===//
2468 // Function Parsing.
2469 //===----------------------------------------------------------------------===//
2471 bool LLParser::ConvertValIDToValue(const Type *Ty, ValID &ID, Value *&V,
2472 PerFunctionState *PFS) {
2473 if (Ty->isFunctionTy())
2474 return Error(ID.Loc, "functions are not values, refer to them as pointers");
2477 default: llvm_unreachable("Unknown ValID!");
2478 case ValID::t_LocalID:
2479 if (!PFS) return Error(ID.Loc, "invalid use of function-local name");
2480 V = PFS->GetVal(ID.UIntVal, Ty, ID.Loc);
2482 case ValID::t_LocalName:
2483 if (!PFS) return Error(ID.Loc, "invalid use of function-local name");
2484 V = PFS->GetVal(ID.StrVal, Ty, ID.Loc);
2486 case ValID::t_InlineAsm: {
2487 const PointerType *PTy = dyn_cast<PointerType>(Ty);
2488 const FunctionType *FTy =
2489 PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
2490 if (!FTy || !InlineAsm::Verify(FTy, ID.StrVal2))
2491 return Error(ID.Loc, "invalid type for inline asm constraint string");
2492 V = InlineAsm::get(FTy, ID.StrVal, ID.StrVal2, ID.UIntVal&1, ID.UIntVal>>1);
2495 case ValID::t_MDNode:
2496 if (!Ty->isMetadataTy())
2497 return Error(ID.Loc, "metadata value must have metadata type");
2500 case ValID::t_MDString:
2501 if (!Ty->isMetadataTy())
2502 return Error(ID.Loc, "metadata value must have metadata type");
2505 case ValID::t_GlobalName:
2506 V = GetGlobalVal(ID.StrVal, Ty, ID.Loc);
2508 case ValID::t_GlobalID:
2509 V = GetGlobalVal(ID.UIntVal, Ty, ID.Loc);
2511 case ValID::t_APSInt:
2512 if (!Ty->isIntegerTy())
2513 return Error(ID.Loc, "integer constant must have integer type");
2514 ID.APSIntVal.extOrTrunc(Ty->getPrimitiveSizeInBits());
2515 V = ConstantInt::get(Context, ID.APSIntVal);
2517 case ValID::t_APFloat:
2518 if (!Ty->isFloatingPointTy() ||
2519 !ConstantFP::isValueValidForType(Ty, ID.APFloatVal))
2520 return Error(ID.Loc, "floating point constant invalid for type");
2522 // The lexer has no type info, so builds all float and double FP constants
2523 // as double. Fix this here. Long double does not need this.
2524 if (&ID.APFloatVal.getSemantics() == &APFloat::IEEEdouble &&
2527 ID.APFloatVal.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven,
2530 V = ConstantFP::get(Context, ID.APFloatVal);
2532 if (V->getType() != Ty)
2533 return Error(ID.Loc, "floating point constant does not have type '" +
2534 Ty->getDescription() + "'");
2538 if (!Ty->isPointerTy())
2539 return Error(ID.Loc, "null must be a pointer type");
2540 V = ConstantPointerNull::get(cast<PointerType>(Ty));
2542 case ValID::t_Undef:
2543 // FIXME: LabelTy should not be a first-class type.
2544 if ((!Ty->isFirstClassType() || Ty->isLabelTy()) &&
2546 return Error(ID.Loc, "invalid type for undef constant");
2547 V = UndefValue::get(Ty);
2549 case ValID::t_EmptyArray:
2550 if (!Ty->isArrayTy() || cast<ArrayType>(Ty)->getNumElements() != 0)
2551 return Error(ID.Loc, "invalid empty array initializer");
2552 V = UndefValue::get(Ty);
2555 // FIXME: LabelTy should not be a first-class type.
2556 if (!Ty->isFirstClassType() || Ty->isLabelTy())
2557 return Error(ID.Loc, "invalid type for null constant");
2558 V = Constant::getNullValue(Ty);
2560 case ValID::t_Constant:
2561 if (ID.ConstantVal->getType() != Ty) {
2562 // Allow a constant struct with a single member to be converted
2563 // to a union, if the union has a member which is the same type
2564 // as the struct member.
2565 if (const UnionType* utype = dyn_cast<UnionType>(Ty)) {
2566 return ParseUnionValue(utype, ID, V);
2569 return Error(ID.Loc, "constant expression type mismatch");
2577 bool LLParser::ParseValue(const Type *Ty, Value *&V, PerFunctionState &PFS) {
2580 return ParseValID(ID, &PFS) ||
2581 ConvertValIDToValue(Ty, ID, V, &PFS);
2584 bool LLParser::ParseTypeAndValue(Value *&V, PerFunctionState &PFS) {
2585 PATypeHolder T(Type::getVoidTy(Context));
2586 return ParseType(T) ||
2587 ParseValue(T, V, PFS);
2590 bool LLParser::ParseTypeAndBasicBlock(BasicBlock *&BB, LocTy &Loc,
2591 PerFunctionState &PFS) {
2594 if (ParseTypeAndValue(V, PFS)) return true;
2595 if (!isa<BasicBlock>(V))
2596 return Error(Loc, "expected a basic block");
2597 BB = cast<BasicBlock>(V);
2601 bool LLParser::ParseUnionValue(const UnionType* utype, ValID &ID, Value *&V) {
2602 if (const StructType* stype = dyn_cast<StructType>(ID.ConstantVal->getType())) {
2603 if (stype->getNumContainedTypes() != 1)
2604 return Error(ID.Loc, "constant expression type mismatch");
2605 int index = utype->getElementTypeIndex(stype->getContainedType(0));
2607 return Error(ID.Loc, "initializer type is not a member of the union");
2609 V = ConstantUnion::get(
2610 utype, cast<Constant>(ID.ConstantVal->getOperand(0)));
2614 return Error(ID.Loc, "constant expression type mismatch");
2619 /// ::= OptionalLinkage OptionalVisibility OptionalCallingConv OptRetAttrs
2620 /// Type GlobalName '(' ArgList ')' OptFuncAttrs OptSection
2621 /// OptionalAlign OptGC
2622 bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) {
2623 // Parse the linkage.
2624 LocTy LinkageLoc = Lex.getLoc();
2627 unsigned Visibility, RetAttrs;
2629 PATypeHolder RetType(Type::getVoidTy(Context));
2630 LocTy RetTypeLoc = Lex.getLoc();
2631 if (ParseOptionalLinkage(Linkage) ||
2632 ParseOptionalVisibility(Visibility) ||
2633 ParseOptionalCallingConv(CC) ||
2634 ParseOptionalAttrs(RetAttrs, 1) ||
2635 ParseType(RetType, RetTypeLoc, true /*void allowed*/))
2638 // Verify that the linkage is ok.
2639 switch ((GlobalValue::LinkageTypes)Linkage) {
2640 case GlobalValue::ExternalLinkage:
2641 break; // always ok.
2642 case GlobalValue::DLLImportLinkage:
2643 case GlobalValue::ExternalWeakLinkage:
2645 return Error(LinkageLoc, "invalid linkage for function definition");
2647 case GlobalValue::PrivateLinkage:
2648 case GlobalValue::LinkerPrivateLinkage:
2649 case GlobalValue::InternalLinkage:
2650 case GlobalValue::AvailableExternallyLinkage:
2651 case GlobalValue::LinkOnceAnyLinkage:
2652 case GlobalValue::LinkOnceODRLinkage:
2653 case GlobalValue::WeakAnyLinkage:
2654 case GlobalValue::WeakODRLinkage:
2655 case GlobalValue::DLLExportLinkage:
2657 return Error(LinkageLoc, "invalid linkage for function declaration");
2659 case GlobalValue::AppendingLinkage:
2660 case GlobalValue::CommonLinkage:
2661 return Error(LinkageLoc, "invalid function linkage type");
2664 if (!FunctionType::isValidReturnType(RetType) ||
2665 RetType->isOpaqueTy())
2666 return Error(RetTypeLoc, "invalid function return type");
2668 LocTy NameLoc = Lex.getLoc();
2670 std::string FunctionName;
2671 if (Lex.getKind() == lltok::GlobalVar) {
2672 FunctionName = Lex.getStrVal();
2673 } else if (Lex.getKind() == lltok::GlobalID) { // @42 is ok.
2674 unsigned NameID = Lex.getUIntVal();
2676 if (NameID != NumberedVals.size())
2677 return TokError("function expected to be numbered '%" +
2678 utostr(NumberedVals.size()) + "'");
2680 return TokError("expected function name");
2685 if (Lex.getKind() != lltok::lparen)
2686 return TokError("expected '(' in function argument list");
2688 std::vector<ArgInfo> ArgList;
2691 std::string Section;
2695 if (ParseArgumentList(ArgList, isVarArg, false) ||
2696 ParseOptionalAttrs(FuncAttrs, 2) ||
2697 (EatIfPresent(lltok::kw_section) &&
2698 ParseStringConstant(Section)) ||
2699 ParseOptionalAlignment(Alignment) ||
2700 (EatIfPresent(lltok::kw_gc) &&
2701 ParseStringConstant(GC)))
2704 // If the alignment was parsed as an attribute, move to the alignment field.
2705 if (FuncAttrs & Attribute::Alignment) {
2706 Alignment = Attribute::getAlignmentFromAttrs(FuncAttrs);
2707 FuncAttrs &= ~Attribute::Alignment;
2710 // Okay, if we got here, the function is syntactically valid. Convert types
2711 // and do semantic checks.
2712 std::vector<const Type*> ParamTypeList;
2713 SmallVector<AttributeWithIndex, 8> Attrs;
2714 // FIXME : In 3.0, stop accepting zext, sext and inreg as optional function
2716 unsigned ObsoleteFuncAttrs = Attribute::ZExt|Attribute::SExt|Attribute::InReg;
2717 if (FuncAttrs & ObsoleteFuncAttrs) {
2718 RetAttrs |= FuncAttrs & ObsoleteFuncAttrs;
2719 FuncAttrs &= ~ObsoleteFuncAttrs;
2722 if (RetAttrs != Attribute::None)
2723 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
2725 for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
2726 ParamTypeList.push_back(ArgList[i].Type);
2727 if (ArgList[i].Attrs != Attribute::None)
2728 Attrs.push_back(AttributeWithIndex::get(i+1, ArgList[i].Attrs));
2731 if (FuncAttrs != Attribute::None)
2732 Attrs.push_back(AttributeWithIndex::get(~0, FuncAttrs));
2734 AttrListPtr PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
2736 if (PAL.paramHasAttr(1, Attribute::StructRet) && !RetType->isVoidTy())
2737 return Error(RetTypeLoc, "functions with 'sret' argument must return void");
2739 const FunctionType *FT =
2740 FunctionType::get(RetType, ParamTypeList, isVarArg);
2741 const PointerType *PFT = PointerType::getUnqual(FT);
2744 if (!FunctionName.empty()) {
2745 // If this was a definition of a forward reference, remove the definition
2746 // from the forward reference table and fill in the forward ref.
2747 std::map<std::string, std::pair<GlobalValue*, LocTy> >::iterator FRVI =
2748 ForwardRefVals.find(FunctionName);
2749 if (FRVI != ForwardRefVals.end()) {
2750 Fn = M->getFunction(FunctionName);
2751 ForwardRefVals.erase(FRVI);
2752 } else if ((Fn = M->getFunction(FunctionName))) {
2753 // If this function already exists in the symbol table, then it is
2754 // multiply defined. We accept a few cases for old backwards compat.
2755 // FIXME: Remove this stuff for LLVM 3.0.
2756 if (Fn->getType() != PFT || Fn->getAttributes() != PAL ||
2757 (!Fn->isDeclaration() && isDefine)) {
2758 // If the redefinition has different type or different attributes,
2759 // reject it. If both have bodies, reject it.
2760 return Error(NameLoc, "invalid redefinition of function '" +
2761 FunctionName + "'");
2762 } else if (Fn->isDeclaration()) {
2763 // Make sure to strip off any argument names so we can't get conflicts.
2764 for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
2768 } else if (M->getNamedValue(FunctionName)) {
2769 return Error(NameLoc, "redefinition of function '@" + FunctionName + "'");
2773 // If this is a definition of a forward referenced function, make sure the
2775 std::map<unsigned, std::pair<GlobalValue*, LocTy> >::iterator I
2776 = ForwardRefValIDs.find(NumberedVals.size());
2777 if (I != ForwardRefValIDs.end()) {
2778 Fn = cast<Function>(I->second.first);
2779 if (Fn->getType() != PFT)
2780 return Error(NameLoc, "type of definition and forward reference of '@" +
2781 utostr(NumberedVals.size()) +"' disagree");
2782 ForwardRefValIDs.erase(I);
2787 Fn = Function::Create(FT, GlobalValue::ExternalLinkage, FunctionName, M);
2788 else // Move the forward-reference to the correct spot in the module.
2789 M->getFunctionList().splice(M->end(), M->getFunctionList(), Fn);
2791 if (FunctionName.empty())
2792 NumberedVals.push_back(Fn);
2794 Fn->setLinkage((GlobalValue::LinkageTypes)Linkage);
2795 Fn->setVisibility((GlobalValue::VisibilityTypes)Visibility);
2796 Fn->setCallingConv(CC);
2797 Fn->setAttributes(PAL);
2798 Fn->setAlignment(Alignment);
2799 Fn->setSection(Section);
2800 if (!GC.empty()) Fn->setGC(GC.c_str());
2802 // Add all of the arguments we parsed to the function.
2803 Function::arg_iterator ArgIt = Fn->arg_begin();
2804 for (unsigned i = 0, e = ArgList.size(); i != e; ++i, ++ArgIt) {
2805 // If we run out of arguments in the Function prototype, exit early.
2806 // FIXME: REMOVE THIS IN LLVM 3.0, this is just for the mismatch case above.
2807 if (ArgIt == Fn->arg_end()) break;
2809 // If the argument has a name, insert it into the argument symbol table.
2810 if (ArgList[i].Name.empty()) continue;
2812 // Set the name, if it conflicted, it will be auto-renamed.
2813 ArgIt->setName(ArgList[i].Name);
2815 if (ArgIt->getNameStr() != ArgList[i].Name)
2816 return Error(ArgList[i].Loc, "redefinition of argument '%" +
2817 ArgList[i].Name + "'");
2824 /// ParseFunctionBody
2825 /// ::= '{' BasicBlock+ '}'
2826 /// ::= 'begin' BasicBlock+ 'end' // FIXME: remove in LLVM 3.0
2828 bool LLParser::ParseFunctionBody(Function &Fn) {
2829 if (Lex.getKind() != lltok::lbrace && Lex.getKind() != lltok::kw_begin)
2830 return TokError("expected '{' in function body");
2831 Lex.Lex(); // eat the {.
2833 int FunctionNumber = -1;
2834 if (!Fn.hasName()) FunctionNumber = NumberedVals.size()-1;
2836 PerFunctionState PFS(*this, Fn, FunctionNumber);
2838 // We need at least one basic block.
2839 if (Lex.getKind() == lltok::rbrace || Lex.getKind() == lltok::kw_end)
2840 return TokError("function body requires at least one basic block");
2842 while (Lex.getKind() != lltok::rbrace && Lex.getKind() != lltok::kw_end)
2843 if (ParseBasicBlock(PFS)) return true;
2848 // Verify function is ok.
2849 return PFS.FinishFunction();
2853 /// ::= LabelStr? Instruction*
2854 bool LLParser::ParseBasicBlock(PerFunctionState &PFS) {
2855 // If this basic block starts out with a name, remember it.
2857 LocTy NameLoc = Lex.getLoc();
2858 if (Lex.getKind() == lltok::LabelStr) {
2859 Name = Lex.getStrVal();
2863 BasicBlock *BB = PFS.DefineBB(Name, NameLoc);
2864 if (BB == 0) return true;
2866 std::string NameStr;
2868 // Parse the instructions in this block until we get a terminator.
2870 SmallVector<std::pair<unsigned, MDNode *>, 4> MetadataOnInst;
2872 // This instruction may have three possibilities for a name: a) none
2873 // specified, b) name specified "%foo =", c) number specified: "%4 =".
2874 LocTy NameLoc = Lex.getLoc();
2878 if (Lex.getKind() == lltok::LocalVarID) {
2879 NameID = Lex.getUIntVal();
2881 if (ParseToken(lltok::equal, "expected '=' after instruction id"))
2883 } else if (Lex.getKind() == lltok::LocalVar ||
2884 // FIXME: REMOVE IN LLVM 3.0
2885 Lex.getKind() == lltok::StringConstant) {
2886 NameStr = Lex.getStrVal();
2888 if (ParseToken(lltok::equal, "expected '=' after instruction name"))
2892 switch (ParseInstruction(Inst, BB, PFS)) {
2893 default: assert(0 && "Unknown ParseInstruction result!");
2894 case InstError: return true;
2896 // With a normal result, we check to see if the instruction is followed by
2897 // a comma and metadata.
2898 if (EatIfPresent(lltok::comma))
2899 if (ParseInstructionMetadata(MetadataOnInst))
2902 case InstExtraComma:
2903 // If the instruction parser ate an extra comma at the end of it, it
2904 // *must* be followed by metadata.
2905 if (ParseInstructionMetadata(MetadataOnInst))
2910 // Set metadata attached with this instruction.
2911 for (unsigned i = 0, e = MetadataOnInst.size(); i != e; ++i)
2912 Inst->setMetadata(MetadataOnInst[i].first, MetadataOnInst[i].second);
2913 MetadataOnInst.clear();
2915 BB->getInstList().push_back(Inst);
2917 // Set the name on the instruction.
2918 if (PFS.SetInstName(NameID, NameStr, NameLoc, Inst)) return true;
2919 } while (!isa<TerminatorInst>(Inst));
2924 //===----------------------------------------------------------------------===//
2925 // Instruction Parsing.
2926 //===----------------------------------------------------------------------===//
2928 /// ParseInstruction - Parse one of the many different instructions.
2930 int LLParser::ParseInstruction(Instruction *&Inst, BasicBlock *BB,
2931 PerFunctionState &PFS) {
2932 lltok::Kind Token = Lex.getKind();
2933 if (Token == lltok::Eof)
2934 return TokError("found end of file when expecting more instructions");
2935 LocTy Loc = Lex.getLoc();
2936 unsigned KeywordVal = Lex.getUIntVal();
2937 Lex.Lex(); // Eat the keyword.
2940 default: return Error(Loc, "expected instruction opcode");
2941 // Terminator Instructions.
2942 case lltok::kw_unwind: Inst = new UnwindInst(Context); return false;
2943 case lltok::kw_unreachable: Inst = new UnreachableInst(Context); return false;
2944 case lltok::kw_ret: return ParseRet(Inst, BB, PFS);
2945 case lltok::kw_br: return ParseBr(Inst, PFS);
2946 case lltok::kw_switch: return ParseSwitch(Inst, PFS);
2947 case lltok::kw_indirectbr: return ParseIndirectBr(Inst, PFS);
2948 case lltok::kw_invoke: return ParseInvoke(Inst, PFS);
2949 // Binary Operators.
2952 case lltok::kw_mul: {
2955 LocTy ModifierLoc = Lex.getLoc();
2956 if (EatIfPresent(lltok::kw_nuw))
2958 if (EatIfPresent(lltok::kw_nsw)) {
2960 if (EatIfPresent(lltok::kw_nuw))
2963 // API compatibility: Accept either integer or floating-point types.
2964 bool Result = ParseArithmetic(Inst, PFS, KeywordVal, 0);
2966 if (!Inst->getType()->isIntOrIntVectorTy()) {
2968 return Error(ModifierLoc, "nuw only applies to integer operations");
2970 return Error(ModifierLoc, "nsw only applies to integer operations");
2973 cast<BinaryOperator>(Inst)->setHasNoUnsignedWrap(true);
2975 cast<BinaryOperator>(Inst)->setHasNoSignedWrap(true);
2979 case lltok::kw_fadd:
2980 case lltok::kw_fsub:
2981 case lltok::kw_fmul: return ParseArithmetic(Inst, PFS, KeywordVal, 2);
2983 case lltok::kw_sdiv: {
2985 if (EatIfPresent(lltok::kw_exact))
2987 bool Result = ParseArithmetic(Inst, PFS, KeywordVal, 1);
2990 cast<BinaryOperator>(Inst)->setIsExact(true);
2994 case lltok::kw_udiv:
2995 case lltok::kw_urem:
2996 case lltok::kw_srem: return ParseArithmetic(Inst, PFS, KeywordVal, 1);
2997 case lltok::kw_fdiv:
2998 case lltok::kw_frem: return ParseArithmetic(Inst, PFS, KeywordVal, 2);
3000 case lltok::kw_lshr:
3001 case lltok::kw_ashr:
3004 case lltok::kw_xor: return ParseLogical(Inst, PFS, KeywordVal);
3005 case lltok::kw_icmp:
3006 case lltok::kw_fcmp: return ParseCompare(Inst, PFS, KeywordVal);
3008 case lltok::kw_trunc:
3009 case lltok::kw_zext:
3010 case lltok::kw_sext:
3011 case lltok::kw_fptrunc:
3012 case lltok::kw_fpext:
3013 case lltok::kw_bitcast:
3014 case lltok::kw_uitofp:
3015 case lltok::kw_sitofp:
3016 case lltok::kw_fptoui:
3017 case lltok::kw_fptosi:
3018 case lltok::kw_inttoptr:
3019 case lltok::kw_ptrtoint: return ParseCast(Inst, PFS, KeywordVal);
3021 case lltok::kw_select: return ParseSelect(Inst, PFS);
3022 case lltok::kw_va_arg: return ParseVA_Arg(Inst, PFS);
3023 case lltok::kw_extractelement: return ParseExtractElement(Inst, PFS);
3024 case lltok::kw_insertelement: return ParseInsertElement(Inst, PFS);
3025 case lltok::kw_shufflevector: return ParseShuffleVector(Inst, PFS);
3026 case lltok::kw_phi: return ParsePHI(Inst, PFS);
3027 case lltok::kw_call: return ParseCall(Inst, PFS, false);
3028 case lltok::kw_tail: return ParseCall(Inst, PFS, true);
3030 case lltok::kw_alloca: return ParseAlloc(Inst, PFS);
3031 case lltok::kw_malloc: return ParseAlloc(Inst, PFS, BB, false);
3032 case lltok::kw_free: return ParseFree(Inst, PFS, BB);
3033 case lltok::kw_load: return ParseLoad(Inst, PFS, false);
3034 case lltok::kw_store: return ParseStore(Inst, PFS, false);
3035 case lltok::kw_volatile:
3036 if (EatIfPresent(lltok::kw_load))
3037 return ParseLoad(Inst, PFS, true);
3038 else if (EatIfPresent(lltok::kw_store))
3039 return ParseStore(Inst, PFS, true);
3041 return TokError("expected 'load' or 'store'");
3042 case lltok::kw_getresult: return ParseGetResult(Inst, PFS);
3043 case lltok::kw_getelementptr: return ParseGetElementPtr(Inst, PFS);
3044 case lltok::kw_extractvalue: return ParseExtractValue(Inst, PFS);
3045 case lltok::kw_insertvalue: return ParseInsertValue(Inst, PFS);
3049 /// ParseCmpPredicate - Parse an integer or fp predicate, based on Kind.
3050 bool LLParser::ParseCmpPredicate(unsigned &P, unsigned Opc) {
3051 if (Opc == Instruction::FCmp) {
3052 switch (Lex.getKind()) {
3053 default: TokError("expected fcmp predicate (e.g. 'oeq')");
3054 case lltok::kw_oeq: P = CmpInst::FCMP_OEQ; break;
3055 case lltok::kw_one: P = CmpInst::FCMP_ONE; break;
3056 case lltok::kw_olt: P = CmpInst::FCMP_OLT; break;
3057 case lltok::kw_ogt: P = CmpInst::FCMP_OGT; break;
3058 case lltok::kw_ole: P = CmpInst::FCMP_OLE; break;
3059 case lltok::kw_oge: P = CmpInst::FCMP_OGE; break;
3060 case lltok::kw_ord: P = CmpInst::FCMP_ORD; break;
3061 case lltok::kw_uno: P = CmpInst::FCMP_UNO; break;
3062 case lltok::kw_ueq: P = CmpInst::FCMP_UEQ; break;
3063 case lltok::kw_une: P = CmpInst::FCMP_UNE; break;
3064 case lltok::kw_ult: P = CmpInst::FCMP_ULT; break;
3065 case lltok::kw_ugt: P = CmpInst::FCMP_UGT; break;
3066 case lltok::kw_ule: P = CmpInst::FCMP_ULE; break;
3067 case lltok::kw_uge: P = CmpInst::FCMP_UGE; break;
3068 case lltok::kw_true: P = CmpInst::FCMP_TRUE; break;
3069 case lltok::kw_false: P = CmpInst::FCMP_FALSE; break;
3072 switch (Lex.getKind()) {
3073 default: TokError("expected icmp predicate (e.g. 'eq')");
3074 case lltok::kw_eq: P = CmpInst::ICMP_EQ; break;
3075 case lltok::kw_ne: P = CmpInst::ICMP_NE; break;
3076 case lltok::kw_slt: P = CmpInst::ICMP_SLT; break;
3077 case lltok::kw_sgt: P = CmpInst::ICMP_SGT; break;
3078 case lltok::kw_sle: P = CmpInst::ICMP_SLE; break;
3079 case lltok::kw_sge: P = CmpInst::ICMP_SGE; break;
3080 case lltok::kw_ult: P = CmpInst::ICMP_ULT; break;
3081 case lltok::kw_ugt: P = CmpInst::ICMP_UGT; break;
3082 case lltok::kw_ule: P = CmpInst::ICMP_ULE; break;
3083 case lltok::kw_uge: P = CmpInst::ICMP_UGE; break;
3090 //===----------------------------------------------------------------------===//
3091 // Terminator Instructions.
3092 //===----------------------------------------------------------------------===//
3094 /// ParseRet - Parse a return instruction.
3095 /// ::= 'ret' void (',' !dbg, !1)*
3096 /// ::= 'ret' TypeAndValue (',' !dbg, !1)*
3097 /// ::= 'ret' TypeAndValue (',' TypeAndValue)+ (',' !dbg, !1)*
3098 /// [[obsolete: LLVM 3.0]]
3099 int LLParser::ParseRet(Instruction *&Inst, BasicBlock *BB,
3100 PerFunctionState &PFS) {
3101 PATypeHolder Ty(Type::getVoidTy(Context));
3102 if (ParseType(Ty, true /*void allowed*/)) return true;
3104 if (Ty->isVoidTy()) {
3105 Inst = ReturnInst::Create(Context);
3110 if (ParseValue(Ty, RV, PFS)) return true;
3112 bool ExtraComma = false;
3113 if (EatIfPresent(lltok::comma)) {
3114 // Parse optional custom metadata, e.g. !dbg
3115 if (Lex.getKind() == lltok::MetadataVar) {
3118 // The normal case is one return value.
3119 // FIXME: LLVM 3.0 remove MRV support for 'ret i32 1, i32 2', requiring
3120 // use of 'ret {i32,i32} {i32 1, i32 2}'
3121 SmallVector<Value*, 8> RVs;
3125 // If optional custom metadata, e.g. !dbg is seen then this is the
3127 if (Lex.getKind() == lltok::MetadataVar)
3129 if (ParseTypeAndValue(RV, PFS)) return true;
3131 } while (EatIfPresent(lltok::comma));
3133 RV = UndefValue::get(PFS.getFunction().getReturnType());
3134 for (unsigned i = 0, e = RVs.size(); i != e; ++i) {
3135 Instruction *I = InsertValueInst::Create(RV, RVs[i], i, "mrv");
3136 BB->getInstList().push_back(I);
3142 Inst = ReturnInst::Create(Context, RV);
3143 return ExtraComma ? InstExtraComma : InstNormal;
3148 /// ::= 'br' TypeAndValue
3149 /// ::= 'br' TypeAndValue ',' TypeAndValue ',' TypeAndValue
3150 bool LLParser::ParseBr(Instruction *&Inst, PerFunctionState &PFS) {
3153 BasicBlock *Op1, *Op2;
3154 if (ParseTypeAndValue(Op0, Loc, PFS)) return true;
3156 if (BasicBlock *BB = dyn_cast<BasicBlock>(Op0)) {
3157 Inst = BranchInst::Create(BB);
3161 if (Op0->getType() != Type::getInt1Ty(Context))
3162 return Error(Loc, "branch condition must have 'i1' type");
3164 if (ParseToken(lltok::comma, "expected ',' after branch condition") ||
3165 ParseTypeAndBasicBlock(Op1, Loc, PFS) ||
3166 ParseToken(lltok::comma, "expected ',' after true destination") ||
3167 ParseTypeAndBasicBlock(Op2, Loc2, PFS))
3170 Inst = BranchInst::Create(Op1, Op2, Op0);
3176 /// ::= 'switch' TypeAndValue ',' TypeAndValue '[' JumpTable ']'
3178 /// ::= (TypeAndValue ',' TypeAndValue)*
3179 bool LLParser::ParseSwitch(Instruction *&Inst, PerFunctionState &PFS) {
3180 LocTy CondLoc, BBLoc;
3182 BasicBlock *DefaultBB;
3183 if (ParseTypeAndValue(Cond, CondLoc, PFS) ||
3184 ParseToken(lltok::comma, "expected ',' after switch condition") ||
3185 ParseTypeAndBasicBlock(DefaultBB, BBLoc, PFS) ||
3186 ParseToken(lltok::lsquare, "expected '[' with switch table"))
3189 if (!Cond->getType()->isIntegerTy())
3190 return Error(CondLoc, "switch condition must have integer type");
3192 // Parse the jump table pairs.
3193 SmallPtrSet<Value*, 32> SeenCases;
3194 SmallVector<std::pair<ConstantInt*, BasicBlock*>, 32> Table;
3195 while (Lex.getKind() != lltok::rsquare) {
3199 if (ParseTypeAndValue(Constant, CondLoc, PFS) ||
3200 ParseToken(lltok::comma, "expected ',' after case value") ||
3201 ParseTypeAndBasicBlock(DestBB, PFS))
3204 if (!SeenCases.insert(Constant))
3205 return Error(CondLoc, "duplicate case value in switch");
3206 if (!isa<ConstantInt>(Constant))
3207 return Error(CondLoc, "case value is not a constant integer");
3209 Table.push_back(std::make_pair(cast<ConstantInt>(Constant), DestBB));
3212 Lex.Lex(); // Eat the ']'.
3214 SwitchInst *SI = SwitchInst::Create(Cond, DefaultBB, Table.size());
3215 for (unsigned i = 0, e = Table.size(); i != e; ++i)
3216 SI->addCase(Table[i].first, Table[i].second);
3223 /// ::= 'indirectbr' TypeAndValue ',' '[' LabelList ']'
3224 bool LLParser::ParseIndirectBr(Instruction *&Inst, PerFunctionState &PFS) {
3227 if (ParseTypeAndValue(Address, AddrLoc, PFS) ||
3228 ParseToken(lltok::comma, "expected ',' after indirectbr address") ||
3229 ParseToken(lltok::lsquare, "expected '[' with indirectbr"))
3232 if (!Address->getType()->isPointerTy())
3233 return Error(AddrLoc, "indirectbr address must have pointer type");
3235 // Parse the destination list.
3236 SmallVector<BasicBlock*, 16> DestList;
3238 if (Lex.getKind() != lltok::rsquare) {
3240 if (ParseTypeAndBasicBlock(DestBB, PFS))
3242 DestList.push_back(DestBB);
3244 while (EatIfPresent(lltok::comma)) {
3245 if (ParseTypeAndBasicBlock(DestBB, PFS))
3247 DestList.push_back(DestBB);
3251 if (ParseToken(lltok::rsquare, "expected ']' at end of block list"))
3254 IndirectBrInst *IBI = IndirectBrInst::Create(Address, DestList.size());
3255 for (unsigned i = 0, e = DestList.size(); i != e; ++i)
3256 IBI->addDestination(DestList[i]);
3263 /// ::= 'invoke' OptionalCallingConv OptionalAttrs Type Value ParamList
3264 /// OptionalAttrs 'to' TypeAndValue 'unwind' TypeAndValue
3265 bool LLParser::ParseInvoke(Instruction *&Inst, PerFunctionState &PFS) {
3266 LocTy CallLoc = Lex.getLoc();
3267 unsigned RetAttrs, FnAttrs;
3269 PATypeHolder RetType(Type::getVoidTy(Context));
3272 SmallVector<ParamInfo, 16> ArgList;
3274 BasicBlock *NormalBB, *UnwindBB;
3275 if (ParseOptionalCallingConv(CC) ||
3276 ParseOptionalAttrs(RetAttrs, 1) ||
3277 ParseType(RetType, RetTypeLoc, true /*void allowed*/) ||
3278 ParseValID(CalleeID) ||
3279 ParseParameterList(ArgList, PFS) ||
3280 ParseOptionalAttrs(FnAttrs, 2) ||
3281 ParseToken(lltok::kw_to, "expected 'to' in invoke") ||
3282 ParseTypeAndBasicBlock(NormalBB, PFS) ||
3283 ParseToken(lltok::kw_unwind, "expected 'unwind' in invoke") ||
3284 ParseTypeAndBasicBlock(UnwindBB, PFS))
3287 // If RetType is a non-function pointer type, then this is the short syntax
3288 // for the call, which means that RetType is just the return type. Infer the
3289 // rest of the function argument types from the arguments that are present.
3290 const PointerType *PFTy = 0;
3291 const FunctionType *Ty = 0;
3292 if (!(PFTy = dyn_cast<PointerType>(RetType)) ||
3293 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3294 // Pull out the types of all of the arguments...
3295 std::vector<const Type*> ParamTypes;
3296 for (unsigned i = 0, e = ArgList.size(); i != e; ++i)
3297 ParamTypes.push_back(ArgList[i].V->getType());
3299 if (!FunctionType::isValidReturnType(RetType))
3300 return Error(RetTypeLoc, "Invalid result type for LLVM function");
3302 Ty = FunctionType::get(RetType, ParamTypes, false);
3303 PFTy = PointerType::getUnqual(Ty);
3306 // Look up the callee.
3308 if (ConvertValIDToValue(PFTy, CalleeID, Callee, &PFS)) return true;
3310 // FIXME: In LLVM 3.0, stop accepting zext, sext and inreg as optional
3311 // function attributes.
3312 unsigned ObsoleteFuncAttrs = Attribute::ZExt|Attribute::SExt|Attribute::InReg;
3313 if (FnAttrs & ObsoleteFuncAttrs) {
3314 RetAttrs |= FnAttrs & ObsoleteFuncAttrs;
3315 FnAttrs &= ~ObsoleteFuncAttrs;
3318 // Set up the Attributes for the function.
3319 SmallVector<AttributeWithIndex, 8> Attrs;
3320 if (RetAttrs != Attribute::None)
3321 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
3323 SmallVector<Value*, 8> Args;
3325 // Loop through FunctionType's arguments and ensure they are specified
3326 // correctly. Also, gather any parameter attributes.
3327 FunctionType::param_iterator I = Ty->param_begin();
3328 FunctionType::param_iterator E = Ty->param_end();
3329 for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
3330 const Type *ExpectedTy = 0;
3333 } else if (!Ty->isVarArg()) {
3334 return Error(ArgList[i].Loc, "too many arguments specified");
3337 if (ExpectedTy && ExpectedTy != ArgList[i].V->getType())
3338 return Error(ArgList[i].Loc, "argument is not of expected type '" +
3339 ExpectedTy->getDescription() + "'");
3340 Args.push_back(ArgList[i].V);
3341 if (ArgList[i].Attrs != Attribute::None)
3342 Attrs.push_back(AttributeWithIndex::get(i+1, ArgList[i].Attrs));
3346 return Error(CallLoc, "not enough parameters specified for call");
3348 if (FnAttrs != Attribute::None)
3349 Attrs.push_back(AttributeWithIndex::get(~0, FnAttrs));
3351 // Finish off the Attributes and check them
3352 AttrListPtr PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
3354 InvokeInst *II = InvokeInst::Create(Callee, NormalBB, UnwindBB,
3355 Args.begin(), Args.end());
3356 II->setCallingConv(CC);
3357 II->setAttributes(PAL);
3364 //===----------------------------------------------------------------------===//
3365 // Binary Operators.
3366 //===----------------------------------------------------------------------===//
3369 /// ::= ArithmeticOps TypeAndValue ',' Value
3371 /// If OperandType is 0, then any FP or integer operand is allowed. If it is 1,
3372 /// then any integer operand is allowed, if it is 2, any fp operand is allowed.
3373 bool LLParser::ParseArithmetic(Instruction *&Inst, PerFunctionState &PFS,
3374 unsigned Opc, unsigned OperandType) {
3375 LocTy Loc; Value *LHS, *RHS;
3376 if (ParseTypeAndValue(LHS, Loc, PFS) ||
3377 ParseToken(lltok::comma, "expected ',' in arithmetic operation") ||
3378 ParseValue(LHS->getType(), RHS, PFS))
3382 switch (OperandType) {
3383 default: llvm_unreachable("Unknown operand type!");
3384 case 0: // int or FP.
3385 Valid = LHS->getType()->isIntOrIntVectorTy() ||
3386 LHS->getType()->isFPOrFPVectorTy();
3388 case 1: Valid = LHS->getType()->isIntOrIntVectorTy(); break;
3389 case 2: Valid = LHS->getType()->isFPOrFPVectorTy(); break;
3393 return Error(Loc, "invalid operand type for instruction");
3395 Inst = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS);
3400 /// ::= ArithmeticOps TypeAndValue ',' Value {
3401 bool LLParser::ParseLogical(Instruction *&Inst, PerFunctionState &PFS,
3403 LocTy Loc; Value *LHS, *RHS;
3404 if (ParseTypeAndValue(LHS, Loc, PFS) ||
3405 ParseToken(lltok::comma, "expected ',' in logical operation") ||
3406 ParseValue(LHS->getType(), RHS, PFS))
3409 if (!LHS->getType()->isIntOrIntVectorTy())
3410 return Error(Loc,"instruction requires integer or integer vector operands");
3412 Inst = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS);
3418 /// ::= 'icmp' IPredicates TypeAndValue ',' Value
3419 /// ::= 'fcmp' FPredicates TypeAndValue ',' Value
3420 bool LLParser::ParseCompare(Instruction *&Inst, PerFunctionState &PFS,
3422 // Parse the integer/fp comparison predicate.
3426 if (ParseCmpPredicate(Pred, Opc) ||
3427 ParseTypeAndValue(LHS, Loc, PFS) ||
3428 ParseToken(lltok::comma, "expected ',' after compare value") ||
3429 ParseValue(LHS->getType(), RHS, PFS))
3432 if (Opc == Instruction::FCmp) {
3433 if (!LHS->getType()->isFPOrFPVectorTy())
3434 return Error(Loc, "fcmp requires floating point operands");
3435 Inst = new FCmpInst(CmpInst::Predicate(Pred), LHS, RHS);
3437 assert(Opc == Instruction::ICmp && "Unknown opcode for CmpInst!");
3438 if (!LHS->getType()->isIntOrIntVectorTy() &&
3439 !LHS->getType()->isPointerTy())
3440 return Error(Loc, "icmp requires integer operands");
3441 Inst = new ICmpInst(CmpInst::Predicate(Pred), LHS, RHS);
3446 //===----------------------------------------------------------------------===//
3447 // Other Instructions.
3448 //===----------------------------------------------------------------------===//
3452 /// ::= CastOpc TypeAndValue 'to' Type
3453 bool LLParser::ParseCast(Instruction *&Inst, PerFunctionState &PFS,
3455 LocTy Loc; Value *Op;
3456 PATypeHolder DestTy(Type::getVoidTy(Context));
3457 if (ParseTypeAndValue(Op, Loc, PFS) ||
3458 ParseToken(lltok::kw_to, "expected 'to' after cast value") ||
3462 if (!CastInst::castIsValid((Instruction::CastOps)Opc, Op, DestTy)) {
3463 CastInst::castIsValid((Instruction::CastOps)Opc, Op, DestTy);
3464 return Error(Loc, "invalid cast opcode for cast from '" +
3465 Op->getType()->getDescription() + "' to '" +
3466 DestTy->getDescription() + "'");
3468 Inst = CastInst::Create((Instruction::CastOps)Opc, Op, DestTy);
3473 /// ::= 'select' TypeAndValue ',' TypeAndValue ',' TypeAndValue
3474 bool LLParser::ParseSelect(Instruction *&Inst, PerFunctionState &PFS) {
3476 Value *Op0, *Op1, *Op2;
3477 if (ParseTypeAndValue(Op0, Loc, PFS) ||
3478 ParseToken(lltok::comma, "expected ',' after select condition") ||
3479 ParseTypeAndValue(Op1, PFS) ||
3480 ParseToken(lltok::comma, "expected ',' after select value") ||
3481 ParseTypeAndValue(Op2, PFS))
3484 if (const char *Reason = SelectInst::areInvalidOperands(Op0, Op1, Op2))
3485 return Error(Loc, Reason);
3487 Inst = SelectInst::Create(Op0, Op1, Op2);
3492 /// ::= 'va_arg' TypeAndValue ',' Type
3493 bool LLParser::ParseVA_Arg(Instruction *&Inst, PerFunctionState &PFS) {
3495 PATypeHolder EltTy(Type::getVoidTy(Context));
3497 if (ParseTypeAndValue(Op, PFS) ||
3498 ParseToken(lltok::comma, "expected ',' after vaarg operand") ||
3499 ParseType(EltTy, TypeLoc))
3502 if (!EltTy->isFirstClassType())
3503 return Error(TypeLoc, "va_arg requires operand with first class type");
3505 Inst = new VAArgInst(Op, EltTy);
3509 /// ParseExtractElement
3510 /// ::= 'extractelement' TypeAndValue ',' TypeAndValue
3511 bool LLParser::ParseExtractElement(Instruction *&Inst, PerFunctionState &PFS) {
3514 if (ParseTypeAndValue(Op0, Loc, PFS) ||
3515 ParseToken(lltok::comma, "expected ',' after extract value") ||
3516 ParseTypeAndValue(Op1, PFS))
3519 if (!ExtractElementInst::isValidOperands(Op0, Op1))
3520 return Error(Loc, "invalid extractelement operands");
3522 Inst = ExtractElementInst::Create(Op0, Op1);
3526 /// ParseInsertElement
3527 /// ::= 'insertelement' TypeAndValue ',' TypeAndValue ',' TypeAndValue
3528 bool LLParser::ParseInsertElement(Instruction *&Inst, PerFunctionState &PFS) {
3530 Value *Op0, *Op1, *Op2;
3531 if (ParseTypeAndValue(Op0, Loc, PFS) ||
3532 ParseToken(lltok::comma, "expected ',' after insertelement value") ||
3533 ParseTypeAndValue(Op1, PFS) ||
3534 ParseToken(lltok::comma, "expected ',' after insertelement value") ||
3535 ParseTypeAndValue(Op2, PFS))
3538 if (!InsertElementInst::isValidOperands(Op0, Op1, Op2))
3539 return Error(Loc, "invalid insertelement operands");
3541 Inst = InsertElementInst::Create(Op0, Op1, Op2);
3545 /// ParseShuffleVector
3546 /// ::= 'shufflevector' TypeAndValue ',' TypeAndValue ',' TypeAndValue
3547 bool LLParser::ParseShuffleVector(Instruction *&Inst, PerFunctionState &PFS) {
3549 Value *Op0, *Op1, *Op2;
3550 if (ParseTypeAndValue(Op0, Loc, PFS) ||
3551 ParseToken(lltok::comma, "expected ',' after shuffle mask") ||
3552 ParseTypeAndValue(Op1, PFS) ||
3553 ParseToken(lltok::comma, "expected ',' after shuffle value") ||
3554 ParseTypeAndValue(Op2, PFS))
3557 if (!ShuffleVectorInst::isValidOperands(Op0, Op1, Op2))
3558 return Error(Loc, "invalid extractelement operands");
3560 Inst = new ShuffleVectorInst(Op0, Op1, Op2);
3565 /// ::= 'phi' Type '[' Value ',' Value ']' (',' '[' Value ',' Value ']')*
3566 int LLParser::ParsePHI(Instruction *&Inst, PerFunctionState &PFS) {
3567 PATypeHolder Ty(Type::getVoidTy(Context));
3569 LocTy TypeLoc = Lex.getLoc();
3571 if (ParseType(Ty) ||
3572 ParseToken(lltok::lsquare, "expected '[' in phi value list") ||
3573 ParseValue(Ty, Op0, PFS) ||
3574 ParseToken(lltok::comma, "expected ',' after insertelement value") ||
3575 ParseValue(Type::getLabelTy(Context), Op1, PFS) ||
3576 ParseToken(lltok::rsquare, "expected ']' in phi value list"))
3579 bool AteExtraComma = false;
3580 SmallVector<std::pair<Value*, BasicBlock*>, 16> PHIVals;
3582 PHIVals.push_back(std::make_pair(Op0, cast<BasicBlock>(Op1)));
3584 if (!EatIfPresent(lltok::comma))
3587 if (Lex.getKind() == lltok::MetadataVar) {
3588 AteExtraComma = true;
3592 if (ParseToken(lltok::lsquare, "expected '[' in phi value list") ||
3593 ParseValue(Ty, Op0, PFS) ||
3594 ParseToken(lltok::comma, "expected ',' after insertelement value") ||
3595 ParseValue(Type::getLabelTy(Context), Op1, PFS) ||
3596 ParseToken(lltok::rsquare, "expected ']' in phi value list"))
3600 if (!Ty->isFirstClassType())
3601 return Error(TypeLoc, "phi node must have first class type");
3603 PHINode *PN = PHINode::Create(Ty);
3604 PN->reserveOperandSpace(PHIVals.size());
3605 for (unsigned i = 0, e = PHIVals.size(); i != e; ++i)
3606 PN->addIncoming(PHIVals[i].first, PHIVals[i].second);
3608 return AteExtraComma ? InstExtraComma : InstNormal;
3612 /// ::= 'tail'? 'call' OptionalCallingConv OptionalAttrs Type Value
3613 /// ParameterList OptionalAttrs
3614 bool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS,
3616 unsigned RetAttrs, FnAttrs;
3618 PATypeHolder RetType(Type::getVoidTy(Context));
3621 SmallVector<ParamInfo, 16> ArgList;
3622 LocTy CallLoc = Lex.getLoc();
3624 if ((isTail && ParseToken(lltok::kw_call, "expected 'tail call'")) ||
3625 ParseOptionalCallingConv(CC) ||
3626 ParseOptionalAttrs(RetAttrs, 1) ||
3627 ParseType(RetType, RetTypeLoc, true /*void allowed*/) ||
3628 ParseValID(CalleeID) ||
3629 ParseParameterList(ArgList, PFS) ||
3630 ParseOptionalAttrs(FnAttrs, 2))
3633 // If RetType is a non-function pointer type, then this is the short syntax
3634 // for the call, which means that RetType is just the return type. Infer the
3635 // rest of the function argument types from the arguments that are present.
3636 const PointerType *PFTy = 0;
3637 const FunctionType *Ty = 0;
3638 if (!(PFTy = dyn_cast<PointerType>(RetType)) ||
3639 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3640 // Pull out the types of all of the arguments...
3641 std::vector<const Type*> ParamTypes;
3642 for (unsigned i = 0, e = ArgList.size(); i != e; ++i)
3643 ParamTypes.push_back(ArgList[i].V->getType());
3645 if (!FunctionType::isValidReturnType(RetType))
3646 return Error(RetTypeLoc, "Invalid result type for LLVM function");
3648 Ty = FunctionType::get(RetType, ParamTypes, false);
3649 PFTy = PointerType::getUnqual(Ty);
3652 // Look up the callee.
3654 if (ConvertValIDToValue(PFTy, CalleeID, Callee, &PFS)) return true;
3656 // FIXME: In LLVM 3.0, stop accepting zext, sext and inreg as optional
3657 // function attributes.
3658 unsigned ObsoleteFuncAttrs = Attribute::ZExt|Attribute::SExt|Attribute::InReg;
3659 if (FnAttrs & ObsoleteFuncAttrs) {
3660 RetAttrs |= FnAttrs & ObsoleteFuncAttrs;
3661 FnAttrs &= ~ObsoleteFuncAttrs;
3664 // Set up the Attributes for the function.
3665 SmallVector<AttributeWithIndex, 8> Attrs;
3666 if (RetAttrs != Attribute::None)
3667 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
3669 SmallVector<Value*, 8> Args;
3671 // Loop through FunctionType's arguments and ensure they are specified
3672 // correctly. Also, gather any parameter attributes.
3673 FunctionType::param_iterator I = Ty->param_begin();
3674 FunctionType::param_iterator E = Ty->param_end();
3675 for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
3676 const Type *ExpectedTy = 0;
3679 } else if (!Ty->isVarArg()) {
3680 return Error(ArgList[i].Loc, "too many arguments specified");
3683 if (ExpectedTy && ExpectedTy != ArgList[i].V->getType())
3684 return Error(ArgList[i].Loc, "argument is not of expected type '" +
3685 ExpectedTy->getDescription() + "'");
3686 Args.push_back(ArgList[i].V);
3687 if (ArgList[i].Attrs != Attribute::None)
3688 Attrs.push_back(AttributeWithIndex::get(i+1, ArgList[i].Attrs));
3692 return Error(CallLoc, "not enough parameters specified for call");
3694 if (FnAttrs != Attribute::None)
3695 Attrs.push_back(AttributeWithIndex::get(~0, FnAttrs));
3697 // Finish off the Attributes and check them
3698 AttrListPtr PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
3700 CallInst *CI = CallInst::Create(Callee, Args.begin(), Args.end());
3701 CI->setTailCall(isTail);
3702 CI->setCallingConv(CC);
3703 CI->setAttributes(PAL);
3708 //===----------------------------------------------------------------------===//
3709 // Memory Instructions.
3710 //===----------------------------------------------------------------------===//
3713 /// ::= 'malloc' Type (',' TypeAndValue)? (',' OptionalInfo)?
3714 /// ::= 'alloca' Type (',' TypeAndValue)? (',' OptionalInfo)?
3715 int LLParser::ParseAlloc(Instruction *&Inst, PerFunctionState &PFS,
3716 BasicBlock* BB, bool isAlloca) {
3717 PATypeHolder Ty(Type::getVoidTy(Context));
3720 unsigned Alignment = 0;
3721 if (ParseType(Ty)) return true;
3723 bool AteExtraComma = false;
3724 if (EatIfPresent(lltok::comma)) {
3725 if (Lex.getKind() == lltok::kw_align) {
3726 if (ParseOptionalAlignment(Alignment)) return true;
3727 } else if (Lex.getKind() == lltok::MetadataVar) {
3728 AteExtraComma = true;
3730 if (ParseTypeAndValue(Size, SizeLoc, PFS) ||
3731 ParseOptionalCommaAlign(Alignment, AteExtraComma))
3736 if (Size && !Size->getType()->isIntegerTy(32))
3737 return Error(SizeLoc, "element count must be i32");
3740 Inst = new AllocaInst(Ty, Size, Alignment);
3741 return AteExtraComma ? InstExtraComma : InstNormal;
3744 // Autoupgrade old malloc instruction to malloc call.
3745 // FIXME: Remove in LLVM 3.0.
3746 const Type *IntPtrTy = Type::getInt32Ty(Context);
3747 Constant *AllocSize = ConstantExpr::getSizeOf(Ty);
3748 AllocSize = ConstantExpr::getTruncOrBitCast(AllocSize, IntPtrTy);
3750 // Prototype malloc as "void *(int32)".
3751 // This function is renamed as "malloc" in ValidateEndOfModule().
3752 MallocF = cast<Function>(
3753 M->getOrInsertFunction("", Type::getInt8PtrTy(Context), IntPtrTy, NULL));
3754 Inst = CallInst::CreateMalloc(BB, IntPtrTy, Ty, AllocSize, Size, MallocF);
3755 return AteExtraComma ? InstExtraComma : InstNormal;
3759 /// ::= 'free' TypeAndValue
3760 bool LLParser::ParseFree(Instruction *&Inst, PerFunctionState &PFS,
3762 Value *Val; LocTy Loc;
3763 if (ParseTypeAndValue(Val, Loc, PFS)) return true;
3764 if (!Val->getType()->isPointerTy())
3765 return Error(Loc, "operand to free must be a pointer");
3766 Inst = CallInst::CreateFree(Val, BB);
3771 /// ::= 'volatile'? 'load' TypeAndValue (',' OptionalInfo)?
3772 int LLParser::ParseLoad(Instruction *&Inst, PerFunctionState &PFS,
3774 Value *Val; LocTy Loc;
3775 unsigned Alignment = 0;
3776 bool AteExtraComma = false;
3777 if (ParseTypeAndValue(Val, Loc, PFS) ||
3778 ParseOptionalCommaAlign(Alignment, AteExtraComma))
3781 if (!Val->getType()->isPointerTy() ||
3782 !cast<PointerType>(Val->getType())->getElementType()->isFirstClassType())
3783 return Error(Loc, "load operand must be a pointer to a first class type");
3785 Inst = new LoadInst(Val, "", isVolatile, Alignment);
3786 return AteExtraComma ? InstExtraComma : InstNormal;
3790 /// ::= 'volatile'? 'store' TypeAndValue ',' TypeAndValue (',' 'align' i32)?
3791 int LLParser::ParseStore(Instruction *&Inst, PerFunctionState &PFS,
3793 Value *Val, *Ptr; LocTy Loc, PtrLoc;
3794 unsigned Alignment = 0;
3795 bool AteExtraComma = false;
3796 if (ParseTypeAndValue(Val, Loc, PFS) ||
3797 ParseToken(lltok::comma, "expected ',' after store operand") ||
3798 ParseTypeAndValue(Ptr, PtrLoc, PFS) ||
3799 ParseOptionalCommaAlign(Alignment, AteExtraComma))
3802 if (!Ptr->getType()->isPointerTy())
3803 return Error(PtrLoc, "store operand must be a pointer");
3804 if (!Val->getType()->isFirstClassType())
3805 return Error(Loc, "store operand must be a first class value");
3806 if (cast<PointerType>(Ptr->getType())->getElementType() != Val->getType())
3807 return Error(Loc, "stored value and pointer type do not match");
3809 Inst = new StoreInst(Val, Ptr, isVolatile, Alignment);
3810 return AteExtraComma ? InstExtraComma : InstNormal;
3814 /// ::= 'getresult' TypeAndValue ',' i32
3815 /// FIXME: Remove support for getresult in LLVM 3.0
3816 bool LLParser::ParseGetResult(Instruction *&Inst, PerFunctionState &PFS) {
3817 Value *Val; LocTy ValLoc, EltLoc;
3819 if (ParseTypeAndValue(Val, ValLoc, PFS) ||
3820 ParseToken(lltok::comma, "expected ',' after getresult operand") ||
3821 ParseUInt32(Element, EltLoc))
3824 if (!Val->getType()->isStructTy() && !Val->getType()->isArrayTy())
3825 return Error(ValLoc, "getresult inst requires an aggregate operand");
3826 if (!ExtractValueInst::getIndexedType(Val->getType(), Element))
3827 return Error(EltLoc, "invalid getresult index for value");
3828 Inst = ExtractValueInst::Create(Val, Element);
3832 /// ParseGetElementPtr
3833 /// ::= 'getelementptr' 'inbounds'? TypeAndValue (',' TypeAndValue)*
3834 int LLParser::ParseGetElementPtr(Instruction *&Inst, PerFunctionState &PFS) {
3835 Value *Ptr, *Val; LocTy Loc, EltLoc;
3837 bool InBounds = EatIfPresent(lltok::kw_inbounds);
3839 if (ParseTypeAndValue(Ptr, Loc, PFS)) return true;
3841 if (!Ptr->getType()->isPointerTy())
3842 return Error(Loc, "base of getelementptr must be a pointer");
3844 SmallVector<Value*, 16> Indices;
3845 bool AteExtraComma = false;
3846 while (EatIfPresent(lltok::comma)) {
3847 if (Lex.getKind() == lltok::MetadataVar) {
3848 AteExtraComma = true;
3851 if (ParseTypeAndValue(Val, EltLoc, PFS)) return true;
3852 if (!Val->getType()->isIntegerTy())
3853 return Error(EltLoc, "getelementptr index must be an integer");
3854 Indices.push_back(Val);
3857 if (!GetElementPtrInst::getIndexedType(Ptr->getType(),
3858 Indices.begin(), Indices.end()))
3859 return Error(Loc, "invalid getelementptr indices");
3860 Inst = GetElementPtrInst::Create(Ptr, Indices.begin(), Indices.end());
3862 cast<GetElementPtrInst>(Inst)->setIsInBounds(true);
3863 return AteExtraComma ? InstExtraComma : InstNormal;
3866 /// ParseExtractValue
3867 /// ::= 'extractvalue' TypeAndValue (',' uint32)+
3868 int LLParser::ParseExtractValue(Instruction *&Inst, PerFunctionState &PFS) {
3869 Value *Val; LocTy Loc;
3870 SmallVector<unsigned, 4> Indices;
3872 if (ParseTypeAndValue(Val, Loc, PFS) ||
3873 ParseIndexList(Indices, AteExtraComma))
3876 if (!Val->getType()->isAggregateType())
3877 return Error(Loc, "extractvalue operand must be aggregate type");
3879 if (!ExtractValueInst::getIndexedType(Val->getType(), Indices.begin(),
3881 return Error(Loc, "invalid indices for extractvalue");
3882 Inst = ExtractValueInst::Create(Val, Indices.begin(), Indices.end());
3883 return AteExtraComma ? InstExtraComma : InstNormal;
3886 /// ParseInsertValue
3887 /// ::= 'insertvalue' TypeAndValue ',' TypeAndValue (',' uint32)+
3888 int LLParser::ParseInsertValue(Instruction *&Inst, PerFunctionState &PFS) {
3889 Value *Val0, *Val1; LocTy Loc0, Loc1;
3890 SmallVector<unsigned, 4> Indices;
3892 if (ParseTypeAndValue(Val0, Loc0, PFS) ||
3893 ParseToken(lltok::comma, "expected comma after insertvalue operand") ||
3894 ParseTypeAndValue(Val1, Loc1, PFS) ||
3895 ParseIndexList(Indices, AteExtraComma))
3898 if (!Val0->getType()->isAggregateType())
3899 return Error(Loc0, "insertvalue operand must be aggregate type");
3901 if (!ExtractValueInst::getIndexedType(Val0->getType(), Indices.begin(),
3903 return Error(Loc0, "invalid indices for insertvalue");
3904 Inst = InsertValueInst::Create(Val0, Val1, Indices.begin(), Indices.end());
3905 return AteExtraComma ? InstExtraComma : InstNormal;
3908 //===----------------------------------------------------------------------===//
3909 // Embedded metadata.
3910 //===----------------------------------------------------------------------===//
3912 /// ParseMDNodeVector
3913 /// ::= Element (',' Element)*
3915 /// ::= 'null' | TypeAndValue
3916 bool LLParser::ParseMDNodeVector(SmallVectorImpl<Value*> &Elts,
3917 PerFunctionState *PFS) {
3919 // Null is a special case since it is typeless.
3920 if (EatIfPresent(lltok::kw_null)) {
3926 PATypeHolder Ty(Type::getVoidTy(Context));
3928 if (ParseType(Ty) || ParseValID(ID, PFS) ||
3929 ConvertValIDToValue(Ty, ID, V, PFS))
3933 } while (EatIfPresent(lltok::comma));